on my 2.0 ive done a fair few things, but the following are some of the easier more basic/cheaper mods:
stubby aerial - £10
ZHP gear knob - £30-40
Gaptech RCH+ (control roof with the key fob) - £100
Spacers to wheels - came with car
other more expensive things like:
//M rear bumper (added PDC sensors while i was at it)
//M front bumper
Aero side skirts
Full custom quad conversion
next up:
stud conversion kit - £56
front 330 big brake conversion £100
lowering springs/shocks £400ish
wheels £600
tyres ???
hope that helps