Will refrain from "spazzing", but the Geo Prizm was a slightly modified version of the Toyota Corolla. Take a look at a Geo/Chevy Prizm and a Corolla and see if there is not a similarity.
You are correct about the vehicles built by Suzuki. Isuzu built some of the Geo models (Spectrum, Storm) as well.
Finally, when you make a comment like "they're all little Japanese cars, right?" you are practically begging to be "spazzed", as you put it.
I think posters here need a little history lesson.
Realizing that they couldn't compete in the small car arena, GM created a GEO subsidiary which was sold alongside Chevys. GEO wasn't manufacturer specific, and featured cars from Suzuki (Metro), Isuzu (Storm), Toyota (Prizm) and so on.
For whatever reason, GM dumped the GEO brand and today Chevy is the global brand for most of the small cars it sells, including everything from the newly acquired Daewoo.
The Prizms were built alongside Corollas in the NUMMI plant in Fremont, CA. I know this since I live 30 minutes from it and pass it on the way to my clients around there.
22 mpg? that's pretty low gas mileage considering it's a gas saving 3 cylinder car. My 95 Lincoln town car gets 25mpg around town and that's because it has a 4.6 V8 and tips the scale at nearly 2 tons and on the highway I can boast 28-30 mpg.
Ha... the 4.6 in my old Cougar was lucky to get 18 in town, and it was much lighter than a TC. If your TC did 25 in town, then you had the factory freak because they rarely get 23 on the HWY, let alone in the city.
Back to the Prizm, it's excellent car purely because it's a rebadged Corolla. I would recommend it to anyone looking for a reliable commuter that averages over 30 MPG.
Yes it is built on the same manufacturing line as the Corolla at the NUMMI plant in Fremont Ca. I did some electrical work there for several different outside companies, as their in house electricians only do maintenance work. Looks like some people are confusing it with the 3 cylinder Metro, but it is a 4 cylinder Corolla and gets about 33 mpg freeway; same as a Corolla. After so many Corollas are built, they change to the Prism, and the only differences are minor such as trim and emblems etc.