The SuperMID is a MPG computer for pre-obd2 cars. it was originally designed for the Prius, but will work for any car with Fuel Injection. it is made by a member of this site named Yoshi, who lives in Japan.
LRR tires are Low Rolling Resistance tires. They essentially contact the road less (think of them as harder tires) and therefore less energy and momentum is loss due to friction.
please update my wiki entries with more information
and someone post a gob about the scangauge...looks cool
i'm heard of some very impressive tuning programs that plug directly into the dataling connector...
but obd1 for me...more free support...at least in the honda realm