| Data extracted from the site http://www.fueleconomy.gov provided by
| the US Department of Energy and the US Environmental Protection Agency.

fuel cost.				| target

class:		CAR, STATION WAGON, SUV,
		PICKUP TRUCK, VAN.
make:		label.
displ:		continuous.		| engine displacement (liters/litres)
cylinders:	continuous.
drive:		Auto, Manual.
gears:		continuous.		| 'N/A' if no conventional gears
transmission:	F, R, 4.		| front, rear, 4WD
fuel:		R, P, D, E, C.		| regular, premium, diesel, ethanol, lpg
charger:	T, S, -.		| turbo, super, none
fuel cost:	continuous.		| estimated annual fuel cost ($)
valves/cyl:	continuous.		| valves per cylinder

displ/cyl := displ / cylinders.		| displacement per cylinder
