I have a 21012 CVT .
Watch:
gearchanges should be imperceptible. No clonks, snatching vibration etc.. If any, run away.
Rusty driveshafts can break.
They rust around the petrol filler cap..Mud trap under wing.
Other issues as above.
Check serpentine belt driving alternator etc. for cracks - now 11 year old (easy job)
Boot lock is often not greased and will not open..check carefully.
Ditto opening driver's door using KEY - not using central locking button
Remember many 11 year old cars are abused and not well maintained.
Check handbrake works properly. (Lack of maintenance)
I diy and am particular to ensure everything works as it should,,