The Vextrix V3 does the 3 wheel thing and it's all electric;
http://www.myvectrix.com/components/com_virtuemart/shop_image/product/24295fcfe67b1fb3e9e12fd63723f2dd.jpg
# Top speed of 62 mph
# 35-55 mile range on a single charge
# Lithium Batteries
# 0-50 mph in 5.2 sec
# 475 lbs weight
# Zero emissions and virtually silent
# Plugs into any standard outlet
# Twist throttle for regenerative braking
# Slow speed reverse for easy maneuvering
# Low running cost (1 cent per mile)
# Minimal maintenance (no oil to change or filters to replace)
# Long battery life (up to 7 years or 30,000 miles)