Slightly smaller than a C7-POS. Inside is "cozy" (in a good way). I'm 6'1 and I wasn't wanting for space. I was in the convertible however; I don't have seat time in a coupe.
Saw a dark blue R8 V10 coupe up close last weekend. Haven't seen an F-type coupe yet but having seen the convertible it's the better looking car but I'd rather have the R8