Though the E90 M3 CRT shares its infrastructure with the BMW M3 GTS, it wasn’t intended to be a hardcore track-beast.

BMW actually built the car to ‘show off’ its ability to manufacture carbon fibre-reinforced plastic, or CFRP.

The CRT moniker stands for Carbon Racing Technology, and it shows.

BMW E90 M3 CRT front lip

The bonnet alone had a weight reduction of 50 per cent due to being made of CFRP rather than aluminium, so once passenger cells, seats and spoilers were created in the same material, the CRT only had a 1580kg curb weight.

BMW E90 M3 CRT engine bay

This performance doesn’t come cheap though, one’s up for sale on US luxury classified website DuPont Registry for $299,950 USD, or $396,900 Aussie dollarydoos.

With only 67 CRTs produced, it’s not surprising to see it advertised for so much money, though we imagine a right-hook example would fetch more – there are only five of those in the world.

All of them were painted in ‘Frozen Polar Silver’ metallic, with carbon trim and accents in ‘Melbourne Red’ metallic.

BMW E90 M3 CRT rear side

It’s essentially a ‘liveable’ GTS you could drive daily, but it had four doors, which is why it’s the ultimate E90/E92 BMW for us.