Nothing. I have only had to replace brake pads, battery, and belts.
I bought this car near Palm Springs, Ca. and drove it in 100+ temps it's first year and a half. Then I moved to north Idaho, where I have ran it in temps as low as -10f.
It has never failed me once.
The original Delco battery even lasted me 6 years.
I will keep this car until it turns to a rust pile!
My daughter wants to drive it when she gets her license next year, so I may have to get another Metro for me, or her.
I totally agree with your diagnosis. I have had offers on my car, including the dealership where I bought it. I am planning to keep my Geo until my son turns 16 as it is just the best car to drive. I also plan to keep mine until it rusts or falls apart.
My 1994 Geo has made it through Canadian winters and hot summers. I have replaced the brakes once. I will never sell my car and will drive it until it refuses to start.
I completely agree with the previous reviewers. I bought my 1994 Geo Metro new and it has has lasted through cold Minnesota winters, equally hot summers, and never given me a problem. The odometer currently reads 175,000 miles with no signs of stopping. Especially with escalating automobile prices, repair costs to this beautifully simple little car consistently undercut any other I've seen or heard about (though mostly from my father and his worrisome Buick). Agreeing with others again, I will drive this till there is simply nothing left.