 | |||||||||
| Category | Formula One | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Constructor | Honda | ||||||||
| Predecessor | RA272 | ||||||||
| Successor | RA300 | ||||||||
| Technical specifications | |||||||||
| Engine | Honda RA273E 3 Litre V12 | ||||||||
| Tyres | Goodyear (1966) Firestone (1967) | ||||||||
| Competition history | |||||||||
| Notable entrants | Honda Racing | ||||||||
| Notable drivers |  Richie Ginther Ronnie Bucknum John Surtees | ||||||||
| Debut | 1966 Italian Grand Prix | ||||||||
| |||||||||
| n.b. Unless otherwise stated, all data refer to Formula One World Championship Grands Prix only. | |||||||||
The Honda RA273 was a Formula One racing car used by the Honda team in the 1966 and 1967 Formula One seasons.
The engine was re-designed from the RA272's 1,500cc V12 to a brand new 3,000cc V12 due to the change of regulations before the 1966 season. The new engine was designed by Shoichiro Irimajiri.