Variables in the Car89 dataset.

Make/Model:	The name of the car.
MPGCity:	Miles per gallon in the city.
Weight(lb):	Weight of the car in pounds.
Cargo:		Cargo space in cubic feet.
Seating:	Number of seats.
Horsepower:	The horsepower of the car's engine.
Displacement:	Engine displacement.
HP/Pound:	Horse power per pound (power to weight ratio).
Type:		Type of engine.
Cylinders:	Number of cylinders.
Origin:		Where the  car was made (1 = N.America, 2 = Europe, 3 = Asia)
Length:		Length of the car in inches.
Width:		Width of the car in inches.
TurnDiam:	Turning diameter of the car in feet.
Headroom:	Headroom measured in inches.
Legroom:	Legroom measured in inches.
Price:		Car price in US dollars.
Make:		Manufacturer.
Model:		Model type.
Mpg_Hwy:	Miles per gallon on the highway.
GPMCity:	Gallons per mile in the city.
GP1000MCity	gallons per 1000 miles in the city.