designed by John Clarke. The car was initially designated in 1973 as the Iso–Marlboro IR and two examples started the season. One was destroyed in an accident...

to new deformable structure regulations and was replaced by the new Iso–Marlboro IR. However, the FX3B was raced in two non-Championship races at this...

at 360 hp (268 kW). Painted in Marlboro Red with Marlboro badges on the front fenders Ganley's car debuted on the Iso Rivolta stand at the 1973 Geneva...

Luxemburg-sponsored Lola T330-Chevrolet. Belsø qualified a Formula One Iso-Marlboro for the Frank Williams Racing Cars team at the 1973 Swedish Grand Prix...

Dallara and his company started designing a Formula One car, the Iso-Marlboro IR, for the Williams Team. Another project included designing a race car...

at the Nürburgring. For the 1973 season Ganley signed up to drive an Iso–Marlboro car for Frank Williams Racing. At the 1973 Canadian Grand Prix he was...

formation of the Iso-Marlboro Formula 1 team (the original name of Frank Williams Racing Cars). The business name of the company changed to Iso Motors & Co...

0 Team Surtees Surtees TS9 USA DNS 1973 Frank Williams Racing Cars Iso-Marlboro IR Ford Cosworth DFV 3.0 V8 ARG BRA RSA ESP BEL MON SWE FRA GBR NED 6...

Flat-12 FRA 13 1973 Frank Williams Racing Cars Iso-Marlboro FX3B Cosworth V8 ARG Ret BRA 9 RSA NC 0 Iso-Marlboro IR ESP 11 BEL Ret MON Ret SWE FRA GBR NED GER...

7 8 9 10 11 12 13 14 15 WDC Points 1973 Frank Williams Racing Cars Iso-Marlboro IR Cosworth V8 ARG BRA RSA ESP BEL MON SWE FRA GBR Ret NED GER AUT ITA...