RETRO: Pikes Peak Hill Climb, the Group B years

John Buffum’s 12m20.52s ascent of the 1982 Pikes Peak International Hill Climb in his Group 4-spec Audi Quattro was more than 35 seconds slower than Bill Brister’s winning time in a purpose-built, Chevy-powered Wells Coyote. But the American rally ace had shown the potential of turbocharged, all-wheel-drive rally machinery on the dirt and gravel of the “Race to the Cloud’s” 12.42 miles, 150-plus turns and 4,720ft of elevation change, and for the rest of the decade, Europe’s rallying powerhouses would come, see and conquer on the sweeps, hairpins and vertiginous drops of “America’s Mountain.”

The European assault began with the spectacular Group B machinery that dominated the World Rally Championship until its outlawing at the end of 1986, then continued with ever more outlandish machinery that piled on the power, aero and tech in the thin Colorado air.

Five wins in five years between 1985 and ’89 – three for Audi, then two for Peugeot – were achieved by some of world rallying’s biggest stars, along with two generations of Pikes Peak royalty, the Unsers. But before all of that, Buffum went back for a second shot in 1983, this time winning the Rally class in a Gp. B-spec Quattro.

Recognizing the marketing gold of sending a production-based AWD car up the 14,110ft peak, Audi pulled out the stops for 1984, sending the WRC’s most-successful woman driver, Michele Mouton, and her co-driver Fabrizia Pons, in a full-factory Quattro A2.

As Mouton told the RACER Debrief podcast, she treated the hill climb just as they would a WRC special stage, with Pons calling pace notes for the French driver. Despite a minor engine issue on race day that sapped the A2’s power at key stages on the run, the duo won the Open Rally class and finished second overall behind that guy Bill Brister in his Wells Coyote.

A year later, Audi was back, but several levels up on the intensity scale. For starters, Audi Sport tech guru Roland Gumpert decided Mouton would go solo, removing the diminutive Pons from the co-driver’s seat in a quest to shed any kilos he could. For seconds, the team brought the Audi Sport quattro S1, with its shorter wheelbase, large rear wing and composite body panels. And free of the restrictions of the Gp. B rules, Gumpert pulled additional weight out of the car and tuned its turbocharger characteristics to help deal with the power-sapping altitude.

Despite being copped for speeding in the pre-start area during practice – “It was the first time I saw this macho side of the people,” she recalls. “The feeling was like, ‘Why is this woman coming to the middle of our country with a car like this Audi?’ They could not accept it” – and being forced to start her run from a standing, rather than flying start, Mouton shattered the hill record on race day.

Michѐle Mouton took her Audi Sport quattro S1 to a record-breaking win in 1985, becoming the first woman to conquer Pikes Peak.

The S1 completed the run in 11m25.390s, beating Al Unser Jr.’s 1983 record run by almost 13 seconds as a hugely motivated Mouton kept the throttle planted through a sequence of fast sweepers near the top of the mountain for the first time.

“I decided not to lift. I could feel the car pulling towards the drop,” she says. “I thought I was going off and I accelerated even more. I wanted to show them that anything they could do they would never stop me.”

It was the first overall win for a woman – a feat still to be equaled some 40 years later – and the first for a non-American driver.

But having accomplished it, Mouton was done with Pikes Peak – and Audi, too. She moved to Peugeot in 1986, winning the German Rally Championship in a Gp. B 205 T16, but is adamant that she wouldn’t have returned to the mountain even if she’d stayed with Audi, such was the attitude and hassle she’d encountered.

But Audi wanted to go for it again, this time with an even more extreme Sport quattro E2, and Bobby Unser – already a nine-time King of the Mountain – was only too willing to step in and take back the crown from this upstart young lady, and a foreigner to boot…

Audi had lined up two-time WRC champ Walter Rohrl for the 1986 attempt, but Unser had played hardball. After setting closed-course speed records at Talladega Speedway with an Audi 5000 CS Quattro luxury sedan, Unser refused to allow his name and likeness to be used in any publicity for the achievement unless he was given the Pikes Peak gig.

The E2 was an S1 on steroids. Huge front splitter, massive rear wing, almost 500hp even at Pikes Peak altitude, but with twitchy handling and hand-grenade power delivery that made it a beast to drive. Not that it fazed Unser, who was raring to make it 10 overall wins.

After endless tinkering with turbo boost profiles, suspension and torque splits, “Uncle Bobby” beat Mouton’s 1985 time by 16 seconds. The record was back with Pikes Peak’s first family.

The following year, Rohrl finally got his chance. And with Gp. B now banned in the WRC, Audi could concentrate all its efforts on making the E2 an even more fearsome Pikes Peak weapon for 1987. The E2 Pikes Peak featured a double-deck rear wing, a full-on wing above the hefty front spoiler, revamped suspension and at least 750hp of light-switch power on tap (although legend has it that Rohrl could dial up closer to a thousand).

Unser – not racing, just observing – claimed that the final defining element was when he convinced the German ace to move away from his smooth, flowing WRC style to something more aggressive and Bobby-like into the turns.

With Peugeot sending three of its 205 T16s to Colorado, complete with Audi-style aero packages and a stacked driver line-up of 1981 WRC champ Ari Vatanen, five-time Safari Rally-winner Shekhar Mehta, and Andrea Zanussi, and Malcolm Wilson adding more factory firepower in a Gp. B Ford RS200, it didn’t look like it would be a stroll for Rohrl.

But when the Audi proved more than six seconds a mile quicker than the Peugeots in practice, Rohrl knew he could be in rarefied air (literally) on race day.

The E2 Pikes Peak duly completed its run in 10m47.850s – a new record, of course, but even more significant for being the first sub-11-minute run up the mountain.

Walter Rohrl’s one-off Pikes Peak start with Audi in 1987 shattered the record with a first sub-11-minute ascent.

With that, Rohrl was done with his Pikes Peak dalliance, and so was Audi. Instead, the German marque turned its attention to Trans-Am, with its 200 Quattros now demonstrating AWD prowess on asphalt, and the world’s most famous hill climb was left to Peugeot.

The 205 T16 had won the 1987 Paris-Dakar Rally with Vatanen, but the decision to switch to the longer-wheelbase 405 T16 for its defense of the Saharan off-road marathon meant Vatanen and Peugeot’s 1986 WRC champ Juha Kankkunen (on loan from Toyota’s Gp. A WRC program) would run a version of the new model at Pikes Peak.

As well as the expected AWD, turbocharging, Pikes Peak-specific outlandish aero and acres of composite bodywork, the 405 T16 boasted four-wheel steering. Driving it, Vatanen noted, was rather like playing a Stradivarius violin – it took an expert to get the best out of it, but the result was truly sublime.

Indeed, Vatanen’s winning run (pictured, top) did reset the overall record, albeit by a scant 0.63s over Rohrl’s 1987 benchmark. But even cooler, it resulted in one of the greatest motorsports movies ever made, “Climb Dance.”

Coming in at a little under five minutes, the Jean Louis Mourey-directed movie is a cinéma verité masterpiece. The jazz-inflected piano score soundtracks Vatanen’s winning run, with images ranging from the jaw-droppingly visceral to morning sun-flecked elegance. It was groundbreaking in 1988, but as a lasting memento of a golden era for the Pikes Peak International Hill Climb, “Climb Dance” remains just as thrilling today.

It was left to Unser – of course it was – to complete world rallying’s annexation of Pikes Peak in 1989. With the Peugeots now switched from the Rally-Open division to the Unlimited class, 21-year-old Robby Unser seized his chance with the French factory and beat the returning Vatanen by 24.2s after the Finn glanced a rock and punctured a tire in his race-day run.

A year later, Robby won again, this time in an Open Wheel class Unser Chevy. The European factory programs had gone, points proved and missions accomplished, and for the next few years, Pikes Peak would revert to what it had once been – an almost all-American affair, with big V8s powering locally-built chassis to glory in the Race to the Clouds.

Robby Unser (left) beat reigning King of the Mountain Ari Vatanen to the 1989 Pikes Peak win, completing an era of domination for Group B-derived cars.

You can watch the 2025 Broadmoor Pikes Peak International Hill Climb, presented by Gran Turismo, live and in its entirety on the RACER Network and RACER+ streaming app, Sunday, June 22. For more on RACER+, head to racerplus.com.