Mercedes have given their 2014 car its first run at a cold but dry Silverstone.
The Brackley-based team used one of their allocated filming days, which are allowed under testing restrictions, to give the W05 a shakedown with Nico Rosberg at the wheel.
The car completed 40km on demonstration tyres. It will get its first proper run out at the first pre-season test in Jerez, which starts on Tuesday.
Here is a You Tube sound clip from the team of the V6 engine in action. It sounds like an F1 engine, just one without the higher rev range.
Rosberg tweeted: “Such a great feeling. Just drove my new silver arrow for the first time. It looks quick, but I don’t know if it is quick yet!”
Mercedes have yet to reveal images of their 2014 car publically, with a low-key roll-out planned for the first day of the test.
The team said that Lewis Hamilton will drive the car on Tuesday and Thursday, while Rosberg will get a run on Wednesday and Friday.
Toro Rosso also used one of their filming days to give their new car a run out with Jean-Eric Vergne and rookie Daniil Kvyat in action at Misano in Italy.
The team tweeted: “And now…the track! Today we had a successful filming day @circuitomisano with @jeanericvergne and @dany_kvyat.”
Toro Rosso plan to reveal their new car on Monday at Jerez, one day before the first pre-season test starts.