1991 · TECHNICAL
1991 Technical Regulations
1991 maintained the 3.5L atmospheric engine formula. The technological arms race shifted to electronic driver aids: active/semi-active suspension, sophisticated engine mapping and traction control began entering mainstream use. Williams FW14 debuted with active ride-height control developed from the 1990 FW13B. Honda introduced the RA121E V12 in the McLaren MP4/6 — the last V12 world-championship-winning engine. Semi-automatic gearboxes were now standard across the top teams.
Chapters
Electronic driver aids rise
The 1991 regulations did not specifically outlaw traction control, launch control or active suspension. Teams raced to develop these systems — Williams' active ride led the field, with Ferrari, Benetton and McLaren pursuing parallel programmes. Driver aids would be explicitly banned for 1994 after concerns they were removing driver input from the sport and making accidents harder to predict; the 1991-93 period remains the high-water mark of electronic-assist F1.
Last updated: 2026-04-24
This summary is editorial material prepared by F1pedia for general F1 audiences. It is not a legal reference. For binding rule text, consult the official FIA document.