Honda has fired up its new Formula One engine for the first time as it prepares to return to motor sport's premier category with McLaren in 2015.
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The Japanese company has released a short audio clip of the new 1.6-litre direct injection turbocharged V6 going through its first motions, though the jury remains out on how good the new engines will sound compared with the high-revving V10s and V8s of recent years.

You can judge for yourself by playing the video below.

httpv://www.youtube.com/watch?v=431h20gvm3M

Honda confirmed in May it would return to Formula One, teaming up again with the McLaren F1 team with which it shared a hugely successful partnership in the late 1980s and early 1990s.