Here's my 1999 Astra G. Its a 1.8 16v 3 door sport with a few mods:
Styling
Irmscher front grille
Irmscher spoiler
Lowered 30mm
Angel eye head lights
Black lexus style rear lights
Red brake callipers
Irmscher badge at rear
Colour-coded side bump strips
Performance
ITG Panel Filter, De-restricted airbox, Vectra C diesel Intake pipe
Powerflow full stainless-steel cat-back exhaust system
Plus a few audio mods...