If you are that into kerb crawling in Knightsbridge then the most fun you can have with a super sports car is on track days. It has become a huge business these days, so much so that auto makers produce specifically-designed cars for the job. They are comfortable enough to get you to the track and back, and fast enough to let you have a jolly good time while you are there.

These are two of the best track day cars the world has ever seen: The Mercedes SLS Black Series, and the old but still amazing Porsche 911 (997) GT2 RS. This test is more about the SLS and how it compares to the extremely brilliant Porsche. So over to Evo’s Jethro Bovingdon for the verdict:

The Mercedes is a bit underpowered for this company with 583bhp against the Porsche’s 611. It is also quite massive, which is not a good quality for track work. On the other hand, the Merc is a lot nicer to live with, seeing as it has more creature comfort than the Porsche and is generally softer and less terrifying. A novice driver would enjoy the SLS’ easily accessible performance, but a pro would choose the challenging character of the 911 every time.