I read that Focus article in some magazine.
Anything is possible, just depends on how determined you are and how big your pocketbook is.
Is your Metro a 1.0 or a 1.3? I have read about turbocharged Metros that are pretty quick. A 1600 lb car shouldn't take to much to make it zippy.
I drive a Metro 1.0 5-speed, not real fast but it runs cheap. It will run down the interstate at 80 mph.