check the rear diff, listen for knocks and bangs over bumps, put it on full lock both ways whilst driving in a circle,
check the oil.
look at the last mot to see what advisories it had.
check for last timing chain/cambelt change. regular oil changes.
oh, and it drinks like george best at a free bar

take someone a bit savvy with you, or bribe another garage to give it a once over?
or if you want reliable go toyota. :embarassed: