This is the BMW M5 CS… And it just might be the greatest BMW M car EVER created! But what makes it so special, we hear you ask? Well for starters, the output of the engine compared to the normal M5 Competition has been improved. The 4.4-litre twin-turbo V8 housed under the bonnet now produces 635hp - so 10hp more than the M5 Competition. Doesn’t sound like much? Well trust us, we’re only getting started! Along with receiving carbon ceramics as standard, there are a number of chassis upgrades, such as being fitted with adaptive dampers from the M8. And of course, let’s not forget that there is a whole load of carbon throughout this car, including the roof & bonnet, so as a result, it only weighs 1,825kg! So, it all sounds pretty epic… But is it really worth the eye-watering £141,000 price tag?! You know what to do by now… Stick with Mat for his latest in-depth review!