Honestly, It's not really fast, but it's not bad. Granted, I am coming from a 2002 Mazda Protege5. But, living in Florida I seriously considered the IS350, but didn't get it for a couple reasons. As I stated earlier, I was already at the top of my budget and most of the driving I do is stop and go. So, I would be paying for HPs that I could rarely use. I am selling a Turbo Charged Miata, so maybe my need for speed has been quenched a bit. I bought the IS250 more for luxury, while still having some pep. The 18" wheels gives a good amount of road feel, I didn't want to get too cushy! Funny thing is, I had my heard set on a 325i/330i, but you get more for the money with the IS.