I've also just picked up my (nearly) new Petrol Ex. It was a dealer demo with storm 18" wheels on but I also preferred the Penta's so my dealer swapped them for free. The rrp of the storms is 850 and the penta rrp is 650 I think.
I think my point is that there is no official way of adding 17in Pentas to a car that comes as standard with 17's.
Obviously when you upgrade from a 16in to 17in, there is a 'cost to change' price - in this case £650. My point to the dealer (and HONDA) is that my EX will already be specc'd as standard with 17's, all I am after is a different style of 17. So, there is no upgrade, just a like for like.
The price I have been quoted seems to be a straight purchase of 4 x 17in penta's. This would then leave me with 4 spare standard EX 17's sitting in the garage doing nothing - :roll: :?