This open racing prototype wouldn't look out of place in Batman's garage. Yes, it is entirely insane. But what do you expect from Lamborghini? Go ahead, look through the pictures again. We'll wait.

Back? Good. If you're looking for a roof, you won't find one unless you count the roll bar that's there for safety; given the Lambo's top speed of 221mph and 0-62mph time of 2.9 seconds, it may well come in handy.

Only nine will be made in 2014 – and if you're looking to buy one, expect to shell out nearly £2.8 million before tax. Happy birthday, Lambo.