This dataset contains a subset of the fuel economy data that the EPA makes available on https://fueleconomy.gov/. It contains only models which had a new release every year between 1999 and 2008 - this was used as a proxy for the popularity of the car.

## Usage

mpg

## Format

A data frame with 234 rows and 11 variables:

manufacturer

manufacturer name

model

model name

displ

engine displacement, in litres

year

year of manufacture

cyl

number of cylinders

trans

type of transmission

drv

the type of drive train, where f = front-wheel drive, r = rear wheel drive, 4 = 4wd

cty

city miles per gallon

hwy

highway miles per gallon

fl

fuel type

class

"type" of car