Transmission technology, too, was in a state of fascinating transition. Some F1 teams had begun to fit their cars with sequential semi-automatic gearboxes, those clever paddle-shift systems that would soon become de rigueur. But many still used conventional H-pattern manual ‘boxes, managed by a clutch pedal and a lever that required physicality and precision. Drivers heel-and-toed into corners, the right-hand side of their right feet triggering meticulously gauged throttle blips as the balls of those same feet leaned heavily on the brakes, while their right hands snickety-snicked a dinky lever from ratio to ratio. Mistakes were made, for gears could be missed. As such, gear changing is a skill lost. To this day, I like to heel-and-toe in road cars equipped with manual transmissions, because I belong to a generation that can do it. Young drivers, even young racing drivers, usually cannot.
It so happened that in 1991 the F1 world championships, both drivers’ and constructors’, were won by one of the teams that still cleaved to the old-school creed: McLaren, whose fabulous MP4/6 was designed by my old friend Neil Oatley. I use the word ‘fabulous’ advisedly. Oatley’s MP4/6 boasted, in my view, the GOAT F1 technical specification. It had a manual gearbox — an H-pattern six-speeder — and it had a 3.5-litre naturally aspirated engine whose 12 cylinders were arranged in a 60-degree V.
Ah, that engine. The Honda RA121E V12 was a masterpiece of engineering and a work of art. Twelve cylinders in a 60-degree V is, for the connoisseur, the aesthetic ideal of internal combustion: inherently balanced, sonorous, creamy, yet ferocious. That engine delivered power — 780bhp by the end of the year — not in jagged spikes, and not low-down, but in a glorious, linear crescendo, topping out at a screaming 14,800rpm. And here is a delicious nugget for pub quiz aficionados: the MP4/6 was the only V12-engined car ever to be driven to an F1 world championship. Yes, Ferrari won F1 world championships in the 1970s with 12-cylinder engines, but those were flat-12s, not V12s. Less surprising, but just as cool, is that the MP4/6 was also the last car equipped with a conventional manual gearbox to be driven to an F1 world championship.
Honda powered Senna to his third title in 1991
Grand Prix Photo
It sat low and purposeful, its sidepods sculpted, its rear wing poised like a raptor’s tail. It was not festooned with aerodynamic fripperies or vanes. Its bodywork had been shaped in a wind tunnel, certainly, but you could still look at it and understand how it worked. The relationship between driver, engine, gearbox, and chassis was intimate and direct. When the man in the middle pressed the throttle, butterflies opened; when he moved the gear lever, dog rings engaged; when he braked, discs bit. Cause and effect were beautifully aligned. Oh and, lest we forget, the 1991 F1 weight limit was 505kg. OK, that did not include the driver, as weight limits do nowadays, but, if we assume that your average F1 ace weighed 75kg at that time, then the mass of a 1991 F1 car, if you are comparing apples with apples, works out at 580kg. The 2026 weight limit is 768kg. Lighter than the 2025 cars this year’s new models may be — by 30kg — but wieldy by the standards of 35 years ago they are not.
Moreover, 1991 was not a technological backwater, far from it. Active suspension, traction control, and — as I have already mentioned — a sequential semi-automatic gearbox were all features of the super-quick but not yet super-reliable Williams-Renault FW14. The seeds of the electronic age had therefore been well and truly sown, but they had not yet overwhelmed the analog garden. All the 1991 F1 cars were quick — some of them blisteringly so — yet they demanded finesse and courage in equal measure. They were not energy-management puzzles so much as white-knuckle seat-of-the-pants challenges.