Hi there. Basic run down is as follows....
SXi<SRi<SRI-t<GSi
Perhaps not as simple as that, as the GSi simply replaced the SRi-t as it was only limited run.
SXi includes, lower suspension, 15/16" alloys depending on year, a/c sports interior front fogs. Option of
leccy mirrors,
traction control
cruise control (depending on year)
Irmscher bodykit etc.
ABS on 5-stud hubs
SRi is the same apart from the options became standard.
ABS as standard
Leather steering wheel
CDR500 radio/cd instead of CAR400 radio/cassette
Traction control
205/50 x16 wheels/tyres instead of 195/60/x15
Tailgate spoiler
Cruise Option (i think!)
SRI-t as the name suggests is a 2.0 Turbo unit, very tuneable (upwards of 250bhp achievable quite easily) and plenty fast. Same engine as the GSi. Different bodykits.
Engine choices are...
1.6/1.8 in SXi || 101bhp 0-60 10.5 / 123 bhp 0-60 8.5
1.8/2.0/2.2 in SRi || 123 bhp 0-60 8.5 / 134 bhp 0-60 8.5 / 144bhp 0-60-7.9
2.0 T in Gsi/SRi-T guise. || 190bhp 0-60 7s.
I would say on that budget your looking at a 1.8 SRi. The 1.8 is generally the engine of choice, same 0-60 as the 2.0 with a slightly lower top speed but better economy. The 2.2 is overly heavy and the power increase is very small.
Get yourself over to
www.astraownersclub.com/vb forums and have a chat, tis where i got help buying mine!