The new generation Mercedes SL is testing more and more and that’s resulting in more and more spy photos. And with more chances to get spy photos they get better and sometimes get some chances to get a glimpse of the interior. Like in this case where got the chance while they were loading a prototype onto a truck. The driver was quick to cover things up but our spies still managed to get some decent photos showing a new steering wheel as well as some other details. And not surprisingly there are lots of similarities to the supercar SLS AMG. Our spy photographer will keep on tracking down the SL as testing continues and the camouflage will drop.