This is more or less right:
EDIT (25 July 08): changed some Bm to F#m, that sounds more correct now.
A
For ladies who insure their cars,
E
Sheilas' Wheels are superstars,
F#m
Girls are bored beyond endurance,
D
Payin' too much for car insurance,
Bm D
For bonzer car insurance deals,
F#m E A D A
Girls get onto Sheilas' Wheels.
F#m
Women make the safest drivers,
D
We could save a bunch of fivers,
Bm D
For bonzer car insurance deals,
F#m E A D A
Girls get onto Sheilas' Wheels. 