Have always fancied a nugget yellow rado

They are great cars, possibly one of the best handling FWD cars of the era and possibly even compared to modern cars.
G60 - does = potentially expensive bills £350+ for a rebuild and a lot more if it actually blows.
if you are considering a valver try and get a later 2.0 version (1992-), you get a nicer black interior in them and with a few tweeks to the engine you can approach G60 power levels plus 16v engines easy to maintain/service and not a lot more on juice compared to a 8v.
There are a series of common faults which can effect them, notably spoiler speed sensor/actuator , electric sunroofs (they tend to tilt but not slide or not move at all). other things to note a panels are difficult/expensve - front wings bonnets an bumpers.