I've owned a UK DC2 and an imported DC5,the Z is a different animal but an animal it is. As stated the torque is what you will notice first,delivery is smooth and linear but the gearbox throw is very similar to the teg if not as oily in its action.
The Z will change direction ok and the steering feel is pretty good but it's not as keen as a teg. You can feel the extra weight of the Z but rather than being a negative it just feels more substantial. The engine note is awesome when giving it the beans and you can't beat a rear driver for fun IMO. I bought a UK spec car pre 06,cheaper tax and to be fair on the road you would be pushed to notice any difference with the HR.