Ian, If you are going to spend over $100K on a car, why don't you just get all the options including the 21" tires. I just got my car this Sat and I love the 21"...the 19" might ride better, but 21" looks so good on the car. Not sure why you are debating on the options. The only option I didn't get was the sound..but no complaints. I think you need parking assist, pano roof and tech package. I'm always confused about buyers who never take the tech package...if you are going to spend so much for the car, why not pay extra $4K for the tech package??