differences between the 45 and the zs?

[davidkp]

I'm sorry, i'm sure this topic has been bought up a thousand times but i couldn't find anything about it when i did a quick search.

i currently drive an mg zr but am seriously considering upgrading to something nicer, but don't want to leave the mgr scene.

i'm 19, no ncb and pay 1250 as a named driver on the zr

so the best i could do insurance wise is get a 110, however if i got a 45 i could look at getting a much bigger engine

i'm looking for a mk2, about 2005ish with uber low milage, and would fit a zs180 kit and get myself a set of zs180 wheels on there

however, other than styling, what differences exist? i know the 25s and zrs have a differnt steering rack, throttle bodies, exhausts and throttle cables as standard. what performance and handling differences does the 45 have with the zs?

baring in mind i will be looking to splash out on a set of coilovers and a decent exhaust system

thanks