| Category | Formula One | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Constructor | Renault | ||||||||
| Designers | Pat Symonds(Executive Engineer) Bob Bell(Technical Director) James Allison(Deputy Technical Director) Tim Densham(Chief Designer) Martin Tolliday(Deputy Chief Designer) Tad Czapski(Technology Director) Robin Tuluie(Head of R&D) Dino Toso(Head of Aerodynamics) Bernard Dudot(Engine Technical Director) | ||||||||
| Predecessor | R24 | ||||||||
| Successor | R26 | ||||||||
| Technical specifications | |||||||||
| Chassis | Carbon-fibre monocoque | ||||||||
| Length | 4,600 mm (181 in) | ||||||||
| Width | 1,800 mm (71 in) | ||||||||
| Height | 950 mm (37 in) | ||||||||
| Axle track | 1,450 mm (57 in) (front) 1,400 mm (55 in) (rear) | ||||||||
| Wheelbase | 3,100 mm (122 in) | ||||||||
| Engine | Renault RS25 3.0 L (183 cu in)V10 72°naturally aspirated,mid engined, longitudinally-mounted | ||||||||
| Transmission | Renault 6-speed sequentialsemi-automatic gearbox | ||||||||
| Power | 800–900 hp (597–671 kW) @ 19,000 RPM[1][2] | ||||||||
| Weight | 605 kg (1,334 lb) with driver, camera and ballast | ||||||||
| Fuel | Elf | ||||||||
| Lubricants | Elf | ||||||||
| Tyres | Michelin | ||||||||
| Competition history | |||||||||
| Notable entrants | Mild Seven Renault F1 Team | ||||||||
| Notable drivers | 5. 6. | ||||||||
| Debut | 2005 Australian Grand Prix | ||||||||
| First win | 2005 Australian Grand Prix | ||||||||
| Last win | 2005 Chinese Grand Prix | ||||||||
| Last event | 2005 Chinese Grand Prix | ||||||||
| |||||||||
| Constructors' Championships | 1 (2005) | ||||||||
| Drivers' Championships | 1 (2005,Fernando Alonso) | ||||||||
TheRenault R25 was theFormula One car entered byRenault in the2005 season. The chassis was designed byBob Bell,James Allison,Tim Densham andDino Toso withPat Symonds overseeing the design and production of the car as executive director of Engineering andBernard Dudot leading the engine design.
The car won both theDrivers' andConstructors' Championships in 2005, the first titles for any car racing with aFrench licence since theMatra MS80's triumph in the1969 season.[3] It also became the firstRenault-powered Formula One car to win both championship titles since theWilliams FW19 in1997 and also the firstEnstone-based Formula One car to win the world constructors' championship since theBenetton B195 in1995.
During the season, the car turned out to be slower than theMcLaren MP4-20 at numerous points, with the win tally being 8–10. Reliability and consistency prevailed in the end, withFernando Alonso andGiancarlo Fisichella taking the car to the last win and titles for a V10 powered Formula One car, marking the end of an era.
This car also claimedMichelin's first of only two titles since its return in Formula One, winning the title again with Renault (theR26 2006-spec car) in the 2006 season, the last for the French tyre maker. The R25 was the first Constructors' Championship winning car since 1991 not to have been designed by eitherAdrian Newey orRory Byrne.
Over 19 races, it scored 191 points, 8 wins, 15 podiums and was fully out of the points just twice in 18 starts (not counting theUnited States Grand Prix where both Renault drivers, in common with all their fellowMichelin tyre runners, withdrew prior to starting).[4]
The R25 was also the last Renault Formula One car to use a 6-speed gearbox before the switch to a mandatory 7-speed gearbox inthe following season.
Renault used the 'Mild Seven' logos, except at the Canadian, French, British, Turkish, Italian and Belgian Grands Prix. At these races, the team replaced the logos with Phoenix, flowers, tribals and flame graphics as well with the random text "Team Spirit".


InEpisode 8 of Series 10 of theBBC showTop Gear, in 2007, presenterRichard Hammond drove the R25 around theStowe Circuit atSilverstone, completing two laps.[5]
On 11 December 2020 Alonso drove the car for the first time in 15 years, hours before the start of the first practice session shown onSky Sports,[6] and after the qualifying session for the2020 Abu Dhabi Grand Prix. The car usedPirelli demoslick tyres, rather than the originalMichelin grooved tyres.
(key) (results inbold indicate pole position; races initalics indicate fastest laps)
| Year | Team | Engine | Tyres | Drivers | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | Points | WCC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | Renault | RenaultV10 | M | AUS | MAL | BHR | SMR | ESP | MON | EUR | CAN | USA | FRA | GBR | GER | HUN | TUR | ITA | BEL | BRA | JPN | CHN | 191 | 1st | |
| 3 | 1 | 1 | 1 | 2 | 4 | 1 | Ret | DNS | 1 | 2 | 1 | 11 | 2 | 2 | 2 | 3 | 3 | 1 | |||||||
| 1 | Ret | Ret | Ret | 5 | 12 | 6 | Ret | DNS | 6 | 4 | 4 | 9 | 4 | 3 | Ret | 5 | 2 | 4 |