That video is actually an old S6, but does look very similiar to an S2 from a distance.
Anyway, standard S2 spec is:

230bhp
4x4
6 speed box
2.2 5cyl 20v
0-60:6.1
150mph

£400 remap gets you 280bhp, or you could spend around £1500 to get it to RS2 spec and have a reliable 450bhp
Porsche brakes fit straight on

This is the look I am aiming for