Hi, I have owned the Z for around a month now. Still puts a smile on my face every time I drive it. Luckily my commute to work is only about a 15 mile round trip so the fuel consumption isn't an issue. I also have fitted, the ARK catback exhaust system. I still haven't used the radio because I love having the window right down and just listen to the burble coming out of the back.. Sounds amazing!!