The Metro was based on the Swift, but it was the absolute cheapest, crappiest version of the Swift.
The SSGTi gets my respect... it's not a bad little car, all things considered. It weighs next to nothing and that 1.3 can really scream. The car weighs about 1800lb in stock form.
BTW - the pics don't work and this should probably be in 'off topic' but whatever. SSGTi - <img src="#/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>
Edit: here's a pic of a '90 Swift GT - they dropped the 'i', but it's the same car: