Tony Viana’s BMW (E34) 535i race car: Classic Drive
BMW South Africa has a rich history of building cars unique to our country, and has achieved notable successes in local track-racing series. We track down a factory-commissioned race car – based on a BMW (E34) 535i – with a unique history.
Imagine, as a youngster in the early ’90s, you eagerly followed circuit racing in South Africa. Then, 30 years later, the 2 factory-commissioned BMW (E34) 535i Class B Wesbank Modified Saloon race cars cross your path, both of which have been meticulously restored, and you decide to acquire 1 of them.
Then, when you sift through some old transparencies, you realise that you had spectated the very car you now own being raced at the same track on which you’ve just done the car’s first shakedown drive!

That sums up Grant Viljoen’s sentimental connection with this rare race car. Apart from being a car fanatic, his love for Bayerische Motoren Werke is undeniable. However, he is no stranger to race cars.
A few years ago, he completed a 10-year restoration project of a prime replica example of Mercedes-Benz’s iconic “Red Pig” (a 300SEL 6.3, which laid the foundation for future AMG-fettled super sedans).
As we arrive at Zwartkops Raceway outside Pretoria, the importance of this car is not lost on me. Just over 30 years ago, this very car was raced here, flat out by the late race-car builder, tuner and driver Tony Viana, having been designed and developed by local specialists with the support of BMW SA.

In the late 80s, BMW SA was focused on their Stannic Group N production car series in the locally built and developed (E30) BMW 325is, having 5 factory-entered cars, and supporting several privateer cars.
See also: How BMW’s SA race cars were born – BMW Group SA Chronicles (Ep 2)
See also: BMW 325iS EVO II race car: Classic Drive
BMW SA commissioned a race car styled like an E34 535i
Despite this commitment, it was decided that BMW should also be represented in the highly popular WesBank Modified Saloon Championship. The brand would enter Class B and, in a break with tradition, the race cars would not be built by Viana in Odendaalsrus, but Owen Ashley Racing in Cape Town.
As is clear from the pictures, this car represents so much more than just a tuned sedan. It resembles a BMW (E34) 535i, but with a coupe body (which it never had) – that is where the similarities end.

The race cars were powered by a substantially modified M30B35 inline-6 motor. It utilised the engine block of the European (E23) 745i Turbo, which sprayed oil into the bottom of the pistons through jets, had a dry-sump system, its capacity was enlarged from 3.5- to 3.6-litres, and to conform with Class B regulations, it utilised 48 mm twin-choke side-draft carburettors instead of (the stock) fuel injection.
Gearboxes were 5-speed manual X-Trac units, the differentials being standard, albeit with varying diff ratios, which were tailored to the specific tracks the cars were raced on. The wheels were split-rim BBS or Compomotive rims, with centres turned by local engineer Eddie Pinto.
The standard suspension was replaced with Owen Ashley’s signature horizontal-coil cantilever setup.

The late Tony Viana’s car, number B16 (this example), was the first of the pair of factory-backed race cars based on the BMW (E34) 535i to hit the track, sporting traditional Winfield colours at the time.
“This car made its debut at Killarney Raceway on 6 October 1990, but didn’t have a wing on it yet. At that time, it also had a fibreglass boot lid,” says Viljoen.
“However, when a wing from the 1989 WesBank Modified Saloon M35 race car (an M5-engined machine that Viana styled to resemble an E30 3 Series) was installed and the season restarted in 1991, they had to make a plan because the fibre glass boot lid could not carry the weight of the wing. I fortunately still have the original fibreglass boot lid at home with the correct racing colours of that season,” he adds.

Today, the car appears much as it was back in 1991, decked in BMW Motorsport colours. Some changes were made from race to race back in the day, but the setup is now as accurate as can be expected.
“I was fascinated by saloon and production car racing. The magic of seeing an everyday car all kitted out and ready to race, that connection between a road car and a race car is something special. In May 1991, when I saw these cars for the first time on the track, I was just blown away. Here were large, family-size BMW sedans racing competitively on track. They made a massive impression on me,” says Viljoen.
How these BMW (E34) 535i race cars were restored

“A few years ago, I wondered what happened to these cars. A friend in the know told me that Nick Sheward was restoring them,” Viljoen explains. In 1995, both these cars found their way to Zimbabwe, where they were turbocharged (if at the cost of reliability), but were still raced on the odd occasion.
After they were finally retired, they were displayed at a BMW dealership, which eventually closed down. Then they found their way to a Mercedes-Benz dealership (of all places, considering BMW and ‘Benz are such arch rivals) and they ended up lying out in the veld next door, exposed to the elements. They were fortunately rescued by Leon Joubert, who moved the cars to his farm and parked them under cover.

In 2014, the B17 race car of Deon Joubert (who was Viana’s BMW teammate in the Group N and Modified Saloon series and is now a multiple national circuit-racing champion) was brought back to South Africa and sold to Sheward, who then located the Viana car in Zimbabwe and ended up owning both machines.
Sheward, a very competent restorer, spent the following 7 years restoring both cars simultaneously back to their original specification, and their present condition is a stunning testament to his restoration skills.
He was even able to track down some of the original specialists who worked on these cars, specifically the gentleman who made the fibreglass panels and the apprentice (at the time) who painted the cars.

Sheward has always been involved in historic racing and famously tracks down historically significant cars to restore them. Another significant car on his CV is the other South-African-only WesBank BMW 745i that was raced locally. Sheward found that car, saved it and also completed its full restoration.
See also: The M1-engined BMW 745i – The secret South African creation – BMW Group SA Chronicles
How the owner acquired Viana’s race car
“After meeting Nick (Sheward) and seeing the cars, I told him if he ever wanted to sell them to please consider me. Then, in March 2021, I got the call. Both cars were available: the 1 with which Joubert won Class B and the overall WesBank Modified Saloon Championship, and Viana’s car – I bought the latter.”

The 1992 season was indeed successful for the pair of BMW racing drivers, who made their way up the leader board. Towards the end of the season, Viana was 1st and Joubert 2nd in the title chase. Tony then missed the last 3 races of the year due to his battle with cancer, which meant that Deon won the title.
Drinking in the details of a legendary BMW race car
Stepping closer to the car, it becomes very clear that this is a purpose-built race car that was branded as a BMW (E34) 535i only for marketing purposes. The front and rear of the custom-made body resemble a 5 Series of the era, but the car was styled to look like a “long coupe”. New materials feature throughout the body; the roof and doors are still steel, but many of the other panels are custom fibreglass pieces.

At the rear, the massive wing is supported by 2 cross members. Incidentally and somewhat surprisingly, the boot lid can still be opened as normal. We do just that, and a network of piping becomes visible, and it seems the faded overflow plastic container for the engine oil is likely the original unit.
You can’t help but notice the suspension components through the rear window – what a sight!
We open the engine compartment, and the details abound. Here, the inboard suspension struts are neatly placed over the engine, while the large air intakes can be aptly described as pure mechanical art.

The prospect of driving such an important piece of SA motorsport history was always bound to fray my nerves. The owner kindly shows me around the race car’s cabin and quips: “Please, don’t crash it”, but I am mostly worried that I won’t be able to shift the non-synchromesh ‘box without grinding the gears.
“Just tap off the throttle and move the gear lever into the next ratio; don’t rush it, and you will see it slips right in,” instructs Viloen. Point taken, but that sounds easier said than done.
At the ‘wheel of Viana’s race car – at Zwartkops
This Class B BMW (E34) 535i-derived Wesbank Modified Saloon is pure race car inside; there are barely any recognisable items left from the road car’s interior.
The roll cage fills the cabin, the OMP racing seat hugs me perfectly, and to my right are all the readings I might need: oil pressure, water temperature, fuel pressure and oil temperature gauges, courtesy of VDO.

The gear lever is neatly positioned slightly higher than what is probably ideal, but still perfectly within reach. I turn the main switch on and press the starter button. The aforementioned substantially modified M30B35 inline-6 engine catches immediately, filling the cabin with harsh noise even at idling speeds.
I pull away by slipping the clutch a little – the car is far happier on the move than when accelerating from a standstill. By now, the race car’s shrill gearbox whine dominates proceedings, which it does at almost all speeds. It’s so intense that it effectively relegates the engine and exhaust sounds to the background.

As the race car and its rebuilt engine are still being set up and run in, today is not the time for exploring the redline or on-the-limit cornering manoeuvres, so as I approach 4 000 rpm, I tap off the throttle and move the gear lever across the gate (this is a dog-leg 5-speed gearbox) and into 2nd gear.
And as the owner predicted, the ‘box slips into the next ratio smoothly. The clutch is very heavy, but once you get going, you quickly forget about it. There is even a footrest, but I don’t think that was used often!

The engine quickly revs to just over 4 000 rpm again (in race trim, they revved to around 7 000 rpm), and the shift straight down into 3rd gear is just as simple. The rawness of the experience is continuous and pervasive. The brakes bite strongly, and as I turn in for the 1st set of corners, the BMW, as expected, darts into the turn, with the non-assisted Momo 4-spoke ‘wheel providing a surplus of feedback.
Even though the race car’s tyres are not at their optimal temperature, the grip levels from the 23.5 x 10.5 16-inch slicks fitted to the front and 25.0 x 13 16-inch slicks at the rear are lofty.

You also sit so much lower than in a standard road car, which means I (who, although no beanstalk, is 1.88 metres tall) can barely see over the bonnet. In terms of the sensory experience, the sheer din is integral to the on-track action – you’re constantly bombarded by a cacophony of mechanical sounds.
Selecting a lower gear also comes more easily than I expected. With these older race cars, I have learnt that you must develop a feel for how these transmissions work. A quick blip of the accelerator pedal before you engage a lower gear allows the lever to again slip into the lower ratio without any issues.
Few things are as satisfying as executing a smooth shift through a challenging gearbox. Pure bliss!

Seeing as it’s shorn of unnecessary weight – the BMW tips the scales at around 1 100 kg in race trim – car number B16 delivers meaty acceleration accompanied by that distinctive inline-6 howl. The motor revs eagerly and pulls you down the straights with gusto. It is an intense experience, and as I return to the pits, park the BMW and pull the thin cable to open the driver’s door, I wish my buzz could last forever.
Summary
Having acquired this meticulously restored piece of South African motorsport history – one that is indelibly linked with a legendary motor racing personality that did so much to raise the profile of BMW in our country for most of his life – Grant Viljoen can look forward to a wonderful ownership journey with a well-sorted race car in which he is also emotionally invested. Getting to know the limits of the machine on the very track where Tony Viana campaigned it more than 30 years ago seems entirely fitting.
Thank you to Zwartkops Raceway for making this shoot possible. For more info, visit Zwartkops.co.za.
Find a classic BMW listed for sale on Cars.co.za
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