I'm going to reply very similar to a reply I put on another post with very similar question.

I can't compare the performance to the Audi TT and the BMW Z-4 because I haven't driven them. I think the bimmer is more money and there haven't been too many complimentary things to say about the TT. However, I don't think you can beat the style of the Xfire and the gawk appeal it gets.

Relative to engine performance, there are some on this forum who don't think it is fast enough but I certainly feel it is adequate for everyday driving. I have the 6spd Coupe and I find the shifter smooth and trouble free. Some on the forum have had troubles in the past.

I find the car feels great, fun to drive and very nimble. I have driven cars that feel better, better steering feel, but they have a stiffer suspension and don't ride as nice. I think the Xfire is a good compromise between comfortable ride and handling. The car is very solid. Well built.

I would not say that the car feels small. It is hard to describe the feel but I can say that the steering radius is excellent for turning in tight spots; best car I have driven in that respect.

I have owned five Corvettes (currently have an '88) and driven many different cars. I love the Xfire and drive it every day, except for winter. It currently is stored away during winter and never was my intention to drive during the winter time. I doubt it would handle very well in the snow and ice because of the very low profile tires.

Everyone is different in their sports car preference but I would say that chances are you would end up liking it. The ultimate question and my answer:

Would you buy another one and the answer is "definitely yes", however, next time it would likely be the roadster.

Hope this helps.