Yeh, because all Mercs have really crap 0-60 times... You know, because they all outpace their M-Sport rivals... Yeh, i didn't think a CL getting to 60 in 4.5 seconds was that impressive either
Also, the SLR was 1700kg. I expect this to be much closer to 1500, probably less... It won't use as much carbonfibre, but there will be fewer materials (less metal to use) and i'm pretty sure Merc have learnt from their mistakes...