Williams tops final day of Barcelona tests

Valtteri Bottas will take confidence going into the season opening Australian Grand Prix in two weeks knowing his Williams has the pace and reliability to be a force.

Bottas topped the times on the final day at the Catalunya circuit clocking 1:23.063s on the 33rd of his 89 laps.

Ferrari recruit Sebastian Vettel was next in 1:23.469s ahead of Felipe Nasr’s Sauber (1:24.023s).

The FW37 Williams-Mercedes continued its promising pre-season form with Bottas focussing on performance and aero work.

“One of the main points we have learnt is that the FW37 is very reliable,” Bottas said.

“The car we are taking to Melbourne is very competitive and should make for an interesting start to the season.”

Daniel Ricciardo was set the fourth fastest time in the Red Bull, registering a 1:24.638s ahead of Sergio Perez (1:25.113s) in the Force India.

Nico Rosberg was fifth with his Mercedes setting a best tour of 1:25.186s with the the champion team spending the final day targetting set-up evaluations.

Mercedes amassed a total of 378 laps or 2066km at the Barcelona circuit over the four days of testing.

See below times on Day 4 at Barcelona

1	Valtteri Bottas	Williams	1:23.063	33/89
2	Sebastian Vettel	Ferrari	1:23.469	48 / 129
3	FelipeNasr	Sauber	1:24.023	64 / 159
4	Daniel Ricciardo	Red Bull	1:24.638	81 / 85
5	Sergio Perez	Force India	1:25.113	21 / 72
6	Nico Rosberg	Mercedes	1:25.186	46 / 130
7	Jenson Button	McLaren	1:25.327	24 / 148
8	Max Verstappen	Toro Rosso	1:25.710	28 / 30
9	Pastor Maldonado	Lotus	1:28.272	22 / 36