Black bonnet

Most likely sod all different, they are hardly a hot-running car.

If it was a big turbocharged powerplant it would make it slightly cooler unless it was a hot day, then it might run slightly hotter.

what about a carbon fibre one instead (expensive though_

Frikkin expensive (and usually as heavy if not heavier). TBH, unless you are dragging every last little pony from your motor at major revs, the standard cooling system will be well within its upper limits anyways, so whats the point if you dont mind me asking?

Hi,

Not different, I think. OK, that's a common statement to consider black heat sinks 20% more performant than non-painted (raw alloy) heat sinks, but here we are considering a bonnet. IMHO, a bonnet's colour has no influence on cooling. Anyway, standard insulation under the bonnet avoids the engine to be warm, even under a hard sun. Test it : park your car under a hard sun, wait for the engine to cool down (a couple of hours should do the trick on a GTi), put your hand on the bonnet. Warm, really warm like hell. Open the bonnet, put your hand on the head. Cold.

My conclusion : no influence.

Oh, I do prefer Gran Turismo 2, played by a Dremcast :-)

Regards, G.T snipped-for-privacy@worldonline.fr

Don't know, but it is likely to make people ask you for a lift home late on a Friday night - careful they don't throw up in the back, though!