I loved the RR sport S/C and almost purchased one. The RR interior is much nicer. I have the nappa leather wrapped dash and extended leather in my X and the RR with the accent stitching is still much nicer. I also love the 510hp, it was a blast to drive! That being said, there were 2 significant things that kept me from the RR and they were: 1) Even with 510hp, 12mpg in the city is ridiculous! (this wasn't the deal breaker though) and 2) I'm exactly 6' tall and felt that the RR isn't designed for folks taller than about 5'9" or maybe 5'10". The seat doesn't go far enough back so that your legs don't feel overly bent while seated in it. Those Indian guys over at TATA motors must be shorter than the average American guy! Congrats on the purchase.