Giorgio Piola's F1 technical analysis
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Giorgio Piola's F1 technical analysis

F1’s iconic cars: The brutal Benetton B186 by Giorgio Piola

The depth and breadth of the illustrative archive of Giorgio Piola really knows no bounds, with the legendary Formula 1 illustrator having captured 50 years of the sport’s technical endeavors. Join us as we continue to take a look at some of his favourite cars and this time venture into the excess and decadence of the 1980s.

F1’s iconic cars: The brutal Benetton B186 by Giorgio Piola

The first car we’ll feature from this decade may not be the one you’re expecting but it was certainly of its time: Benetton’s BMW-powered B186 broke from the established order, left an indelible mark on the history books and featured the most powerful engine ever to be strapped into an F1 car!

Click through the car's beginnings below, and then read on as we chart what happened to one of the most brutal cars ever to race in F1's history...

Senna's F1 launchpad
Senna's F1 launchpad
1/6

Photo by: Bonhams

It might have said Benetton above the door in 1986 but it was still very much Toleman at its very core, a team that had already etched its name into F1 folklore. Perhaps most famously remembered for the double-winged TG184 it helped to catapult a young Ayrton Senna into the hearts and minds of every fan at the Monaco GP.
Ayrton Senna, Toleman TG184, Monaco GP
Ayrton Senna, Toleman TG184, Monaco GP
2/6

Photo by: Sutton Images

The Brazilian, having started 13th, was imperious in the wet coditions and set about dragging the car up the order. He would not only record the fastest lap of the race but also crossed the finish line first, only to see his result altered to second due to the timing of the red flag so McLaren’s longtime leader Alain Prost won.
Benetton: From Tyrrell to Alfa to Toleman
Benetton: From Tyrrell to Alfa to Toleman
3/6

Photo by: Motorsport Images

Relative success aside, Toleman had made waves among the F1 community but was struggling financially. It had also made its fair share of enemies… Enter Benetton, who’d arrived in the sport at the start of 80s, seizing upon Formula 1’s global reach and with it an avenue to the clientele it wanted to attract. It started out small, sponsoring Tyrell and Alfa Romeo, before throwing even more financial clout behind Toleman in 1985. At that stage it was still Toleman above the door, but behind the scenes everyone knew it was Benetton pulling the strings.
All tyred out in 1985
All tyred out in 1985
4/6

Photo by: Jean-Philippe Legrand

The first problem was keeping the team suited and booted, given the lack of tyre suppliers willing to supply it. Toleman ran Michelins in 1984, but the French manufacturer had left the sport and, seeing as it had already angered Pirelli when switching to Michelin, that route was out of the question too. Goodyear didn’t want to know either, suggesting they were already at capacity, which left the team at somewhat of an impasse. Unable to compete in the opening three rounds of the championship, Benetton finally bought out the Pirelli tyre contract of Spirit Racing, who had decided to withdraw from the sport and that got Toleman’s season underway.
Teo Fabi, Toleman TG185 Hart
Teo Fabi, Toleman TG185 Hart
5/6

Photo by: Sutton Images

It was to be a 1985 season full of retirements and disappointments, aside from one moment in the sun, as Teo Fabi recorded a pole position time in the Friday session at the German GP that couldn’t be beaten on the Saturday due to rain. However, the glory was to be short-lived as a clutch issue on race day saw him drop to 10th at the start before retiring on Lap 29.
Teo Fabi, Benetton B186-BMW
Teo Fabi, Benetton B186-BMW
6/6

Photo by: Motorsport Images

1986 would be like a new start for the team, as the team ran a truly technicolour Benetton livery and was renamed in its new owner’s honour. This meant it was able to afford the switch from the Hart inline-4 turbocharged engine it had run in the previous seasons, and decided to choose something with just a bit more poke! Read on below…

The power behind the one-win glory

BMW M12/13 F1 engine

BMW M12/13 F1 engine

Photo by: Eric Gilbert

BMW’s M12/13 inline-4 turbocharged engine was an absolute rockstar that makes the current talk of ‘party mode’ seem like an office outing on a wet Wednesday rather than a sold-out concert.

Running over 80psi of turbo boost it was so powerful that no-one can actually pin a figure on the output, with dynos of the time unable to measure power figures that high – although BMW did calculate a figure in the neighbourhood of 1500bhp!

Paired with a gearbox and tyres that could be thrown away after a one-shot qualifying special it was an entirely different prospect come race day, as the engine was detuned, the gearbox changed for something a bit stronger and longer-lasting Pirelli tyres bolted-on. Thus the team would desperately cling onto the slim hope it might make it through a race distance.

Gerhard Berger, Benetton

Gerhard Berger, Benetton

Photo by: LAT Images

Pegged back to 900-1000bhp it was a pig to drive, with the turbocharger now massively oversized for the task at hand. It was turned into a lag monster, a crystal ball needed to know when and where to a start applying the throttle, making cornering more and more like a game of chance...

“You'd open the throttle at the entry to the corner only to get the power at the exit,” said Gerhard Berger. “And if you missed it by five or 10 metres, there was nothing you could do - you just spun it. The lag was about one or two seconds.”

Gerhard Berger, Benetton B186

Gerhard Berger, Benetton B186

Photo by: Sutton Images

This 'go big, or go home' mentality meant that parts would often get chewed up and spat-out all over the place, but on the very rare occasion the stars aligned, the B186 rose to the top.

In fact, lightning would strike twice, as not only did Benetton qualify 1-2 in Berger’s back yard at the Osterreichring (albeit with Fabi out qualifying his Austrian teammate) it also scored pole in Fabi’s backyard at Monza, as the Italian outpaced his closest rival by four tenths of a second!

It was Berger who was to steal the show later in the season though, as F1 rocked up at a returning, reconfigured, bumpy and abrasive Hermanos Rodriguez circuit in Mexico.

Having qualified in fourth the Pirelli-shod B186, the car proved well suited to dealing with the heat and altitude, while also being kind on its tyres.

As his rivals succumbed to severe tyre wear during the early phases of the race, the Austrian simply continued to stomp around and went on to secure his and Benetton’s maiden victory on the same set of rubber that he’d started with!

Podium: Mexican GP winner Gerhard Berger, Benetton

Podium: Mexican GP winner Gerhard Berger, Benetton

Photo by: LAT Images

You can now own a piece of this story too, as a collection of posters showing off Giorgio Piola’s magnificent illustrations have been made available for you to own.

The Benetton B186 from this collection is a full car cutaway.

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