I find myself pushing my back into the seat when accelerating hard of out corners, so no, it's not what I would call lifeless.
The difficulty depends on what aids you choose to use. With a wheel, the best experience for me is with most aids off. I still use ABS, though.
If you like/love the driving model Forza or Gran Turismo, you will probably like this.
Remember that the career mode doesn't grant prizes such as money or new cars. All tracks and cars are unlocked from the start.
This is a pure driving game, with a shiiitload of real life settings for the cars you drive. If you want loud hip hop music, big shiny popups, hand holding..this game is not for you.
If you love driving fast, chasing that perfect lap, and shaving seconds of your time...this game is for you.