This is by far the best car I have ever driven in my life. It's not too expensive compared to a mercedes or a higher end bmw. This has 400 horsepower and is an amazing sports sedan. I recommend this car to everone. The suspension and torque on this car iss uncomparable to others.
I've driven a lot of sports cars and this is among the most fun. I tried the M3/5 and the AMG and just preferred the way the IS-F is tuned. It is a lot more like a muscle car than the M's and I guess I'm just not a Mercedes guy. Plus, with Lexus, I don't have to worry about all the reliability issues of the Germans. Love the grunt, the automatic is buttery smooth and the manual mode is actually decent (from a diehard straight drive fan). Don't understand people whining about the ride. This is a SPORTS car, and it's actually not even that bad for a sports car. Plus I can get 25-27 easily on the highway, 28 if I try hard. Overall an awesome car. Would like ventilated seats, but small gripe.
I spent the first 45 years of my life single and without any kids. I've driven everything from Vipers, to Jags, a host of AMGs, not to mention 1 Aston Martin. I thought about dropping the amount of money for an M5 but then I thought, I have a little girl. I need to spend the money on her. I decided on the IS-F. I drive it daily, like a normal person with my family and like a maniac when I'm alone. So far no problems and nothing but sheer fun. I wish the Lexus people had thought to put adjustable shocks in it to dampen the ride when necessary but oh well. I can always get new kidneys when I'm 80.
Overall this car has met or exceeded my expectations. I have been loyal to Lexus having 2 GS 430s in last 6 years but wanted more performance type numbers and feel. Magically, the IS-F was born. It is very unLexus in its stiffness and ride but what I was expecting in a true performance sedan. It still has many of the nice Lexus features and luxury components. However, this is not your father's Lexus. I drove the M3 sedan after the Motor Trend article rating it better overall. I think some of their points are valid but feel their overall conclusion wrong. The M3 felt a little more clumsy in tight turns and I didn't like the long throws of the manual transmission. I have no regrets.