all depends on how they been treated before at the end of the day.. there old engines now!
Best way to do very little modifications such as.. decat.. boost at 0.7/0.8 , exhaust.. CT9 Hybrid.. Decent clutch.. standard ecu.. maybe change the manifold if you want full power! as 3rd port is restrictive.
Very reliable cars!!!!!
Same with anything tho.. if you mess around with it too much its going to play you up sometimes :-)
goodluck! im sure your enjoy.
im 19 and have owned 17 glanzas in total which is a stupid amount but i really cannot stay away.