Williams FW31
A double-diffuser Williams that was often quickest in practice but never reached the podium.
- Power
- 740 bhp
About the Williams FW31
Unveiled at the Algarve circuit in January 2009 and first driven by test driver Nico Hülkenberg, the FW31 was one of three cars, with the Brawn and Toyota, whose double diffusers were protested and then declared legal. It was a midfield runner that Nico Rosberg regularly brought into the points, while Kazuki Nakajima failed to score all year. Rosberg often topped practice, notably in the wet in Brazil, but could not turn that pace into a pole position. He was running third in Singapore until he ran wide leaving the pits and took a drive-through penalty, and Williams finished seventh in the constructors' championship.
Williams FW31 specs
The Williams FW31 produces 740 bhp (552 kW).
| Make | Williams |
|---|---|
| Model | FW31 |
| Years | 2009 |
| Type | Race car |
| Body style | Open-wheel single-seater |
| Country | United Kingdom |
| Engine | 2.4L naturally aspirated V8 (Toyota RVX-09) |
|---|---|
| Displacement | 2,400 cc (2.4 litres) |
| Induction | Naturally aspirated |
| Power | 740 bhp (552 kW) at 18,000 rpm |
| Redline | 18,000 rpm |
| Transmission | 7-speed seamless-shift semi-automatic |
| Drivetrain | Rear-wheel drive |
| Weight | 605 kg (1,334 lb) |
| Power-to-weight | 1223 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
Williams FW31 rarity in CarSpot
The Williams FW31 is a Unicorn card in CarSpot, with a rarity score of 42 out of 100. The rarest tier: hypercars, one-offs and cars built in tiny numbers, typically fewer than about 500. A Unicorn card is worth 320 XP.
Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works
Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.
Williams FW31 fun facts
- It was the first British Formula One car to use Esso-branded fuel since 1973.
- Hell Energy Drink joined as a sponsor from the Spanish Grand Prix, the second energy drink brand to enter Formula One.
- It was the first Williams to use Mobil 1 lubricants since 1988.