How’s this for an almighty German group test?! Mat’s got his hands on the BMW M5 CS, Audi RS6, Porsche Panamera Turbo S e-hybrid & the AMG GT 4-Door 63 S to find out which is the ultimate German performance car!

Let’s face it, when it comes to mighty machines like this, there’s only one place to start – the engines!

The Audi may be the least powerful car here, but it still packs a huge 4-litre twin-turbo V8 under the bonnet to deliver 600hp & 800Nm of torque.

It’s then followed by the BMW, which is equipped with a 4.4-litre twin-turbo V8 which puts down 635hp & 750Nm of torque. When it comes to torque though, the AMG dwarfs the BMW! It may ‘only’ have a 4-litre twin-turbo V8, but it can deliver 639hp and an awesome 900Nm of torque. And then finally we have the Panamera Turbo S e-hybrid. Thanks to an electric motor joining its 4-litre twin-turbo V8, it can deliver 700hp & 870Nm!

So they’re all seriously impressive machines, but which is the must-have? Well, there’s only one way to find out… Stick with Mat for this epic group test!