metroxfi.com - Rick's personal Xfi page

ecomodder.com An automotive community where performance is judged by fuel economy rather than power and speed

metrompg.com Welcomes fuel efficiency nerds everywhere

carresearchsite.com General information about Geo Metros

1989geometro.com You won't believe what this guy has done

gassavers.org GasSavers is a community of fuel economy enthusiasts

teamswift.net Home of the Suzuki mini-compacts

fueleconomy.gov General information about fuel economy

cars.com General information about fuel economy

waterinjection.info - information on water injection

crxmpg.com - Basic ecomodding ideas