My GP has Tap Shift (paddles on the steering wheel). It's gimmicky I think. I hardly ever use it. You put the car in manual rather than drive and you can shift it up and down from 1st to 4th with the paddles. You get a similar feel as if you had a manual (it will throw you back in the seat and the engine will slow you down in the low gears), but I don't really use it that often. Only when I'm in the mood to really make the thing fly from a dead stop. Then it's 100 times better than if the car is just in automatic! That's good fun!
It can be a little jerky on the shifts up and down. Also, if you don't downshift the car will do it for you when you are almost to a stop and you can feel it jerk a bit. I still like my manual in the Sol better.
Adding to the previous post, it is a little different than the car shifting in automatic. If you let up on the gas in a low gear...you know it just like you would with a true manual. The car will not shift up for you. If you hit the redline, the rev limiter kicks in and that's all you get...you're stuck there until you shift. As I stated before, it will downshift for you. But only when you are almost stopped. It stays in whatever gear you were in, then will shift into first as you come to a stop and this is jerky. You can go pretty slow, for sure 10 mph, and it won't downshift. So if you hit the gas again at 10 mph, you're gonna be taking off in 3rd or 4th unless you downshift it.