I should have known better lol!! I've got two of the official ones so far, love the design and the colour.
Out of interest have you dug into the old racers yet? The 'World Racer' series have a couple of nice cars as do the 'Speed Racer' (I think its called that).
One thing I have got quite hooked on are the 'Tiny Turbo' range, I've managed to get hold of quite a few of those as well as built my own designs. Found a nice way to spice them up a bit without the stickers - I use either Automobile 'stripes' (available on rolls from a car parts shop) or more recently the rolls of tape used by nail bars to decorate woman's nails, you get some great metallic as colours as well as holographic effects type tape for a song off eBay (30 mixed types for a couple of quid).
Just adding some metallic stripes to a racing car tiny turbo type design really improves the impact of it.
Actually I just realised the one you got there AC is the McLaren P1, I'm talking about the new 720;
McLaren