Have you seen E46 M3 CSL prices lately? They are - unless you already own one - downright depressing. Just one is listed for sale on Autotrader currently, and it’ll set you back £69,990. And that’s not the most expensive I’ve seen: there’s even one for £100,000 knocking around.

If you want a very special E46 M3 but can’t stretch to that, let me present a solution: the M3 you see here. And while it looks like any other E46 M3 from the outside, as you’ll see from the next image, it has something rather special under the bonnet.