^ Yes, yes I am.
I put mine (RS) on the local weighbridge & it came in at 1800kg with me in it, after I had removed all the ususal suspects (spare wheel, tools, sub, mats etc.). All the lux adds weight, no doubt.
I'm not concerned though. This article on the weight of the R35 GTR gives me some peace. http://www.topgear.com/uk/photos/kazutoshi-mizuno-nissan-gtr-interview-top-gear-2012-02-23?imageNo=1
With the right tyres, our cars handle better in torrential rain than most do in the dry.