Williams have become the latest team to unveil their car in Jerez following on from Sauber, Red Bull and Toro Rosso on Monday.
Pastor Maldonado and Bruno Senna pulled back the covers on the FW34, a car which has a lot to prove with recent poor form plaguing the Grove based outfit.
The FW34 also marks a return to Renault engines, reuniting one of the most successful partnerships in the sport.
Check out the latest images below (more to follow):
