X1/9 Owners' Club (UK)
A great site for X1/9 enthusiasts

1100 Owners' Club (UK)
A mine of information on this Issigonis/Pininfarina marvel

Mercedes A-class mini-site
Everything you ever wanted to know about this great little car!

Fiat corporate site
All about the current range of Fiats

Lancia corporate site
Very useful, now that Lancias are no longer sold in the UK

Mercedes global site
A very polished site, including information on the Mercedes-Benz museum