I was lucky enough to get a 48 hour test drive, accelerates hard, and brakes hard lots of power. The drawback is that the ride is not as comfortable as the Xfire Limited. If you have a bad back, you will have to invest in some additional cushioning. I love my Roadster Limited and if I had to make a choice between the Xfire SRT and the 300c SRT8, I would opt for the SRT8 more power and less money, I was lucky enough to get a 48 hour test drive on the SRT8 also.