It’s time to celebrate 45 years of Audi’s famous 5-cylinder turbo petrol engine!

That’s right, we’ve got our hands on some of the best, most well-known Audis to be fitted with a 5-cylinder turbo engine, and we’re putting them all up against each other to see which is the quickest over the quarter-mile!

So what do we have in the line-up? It starts off with Mat in the Audi Quattro 20v, and alongside him is an Audi Quattro Group B rally car. Then we have an Audi Sport Quattro, followed by an Audi S2 Coupe, and then finally an Audi RS2 Avant!

We don’t need to run you through which engine they’re all sporting (you should have got that by now… ), but there’s one thing we do need to mention – the price! Combined, these Audis are valued at a massive £2,115,000!

So will the most expensive, the Quattro rally car, storm ahead to victory? There’s only one way to find out – LET’S RACE!