Williams FW08B – developed to aid traction and maximise the length of its ground effect tunnels, the six-wheeled FW08B was tested but never raced. Six-wheeled cars were subsequently banned.
Williams FW14B – with active suspension and traction control, the FW14B was perhaps the most dominant F1 car ever made. Nigel Mansell waltzed to the 1992 World Championship. ‘Driver aids’ were soon banned.
Lotus 97T – Ayrton Senna took seven pole positions in 1985, proving the 97T to be the fastest car on the grid, if not the most reliable. Turbos were soon restricted to limit power, and eventually banned altogether.
Ferrari F2004 – with 3-litre V10 engines producing nearly 1000bhp, and unrestricted tyre development, the F1 cars of 2004 still hold many lap records, 13 years later!
Ferrari P3/4 – 1967 was the final year of ‘unlimited’ sports car, before engine capacity was limited from 1968. Ferrari won the World Championship, beating the larger engined Fords and Chaparrals.
Ferrari 512M – with the astonishingly fast 5-litre Group 5 cars due to be outlawed at the end of the 1971 season, Ferrari withdrew its works team. Penske continued to develop this car, to create the ultimate 512M.
Alfa Romeo 155 DTM – in the mid-1990s the DTM and ITC spawned a new generation of high-tech touring cars. Hugely spectacular, they were also eye-wateringly expensive, and both series collapsed.
MG Metro 6R4 (Silkolene) – after Group B was banned in rallying, the cars found a new home in rallycross. Will Gollop fitted twin turbos to his 6R4 and won the European Championship in 1992.
Ferrari 412 T2 – the last V12-engined car to win a Grand Prix, the 412 T2 marked the end of the road for an engine format that had always been synonymous with Ferrari
Audi RS002 – the proposed replacement for Group B was Group S, which gave manufacturers even more freedom. Sadly it was banned before it even started, leaving the mid-engined RS002 as a tantalising ‘might have been’.
Photography courtesy of LAT Images