Wow, tough choice!
My first choice would be to go VIP style with the GS400. I've always been fond of the bubble eyed GS, not to mention the pwr. Although, it's 6yrs old now..it's still a Lex.
Unless you intend to drop a shit load of money to an IS300 to make it unique, I'd skip it.
I mentioned above that the GS was old, that makes a shiney new Solara a worthy contender. Being a previous Solara owner, you know how rare they are. Modding it won't be very fun though. Get a 'vert!!!
Okay, I wasn't much help but I say GS400!!!
