I may be a bit late to this party, but...

it's so fun:

Simply add "butt" to the name of any and all Ford vehicle models, and hilarity ensues (sometimes more than other times):
Butt Fiesta
Butt Ranger
Butt Explorer
Butt Probe
Butt Escort
Butt Expedition
Butt Flex
Butt Country Squire
Butt Territory
Butt Pilot
Butt Popular
Butt Squire
Butt Thunderbird
Butt Bronco
Butt Falcon
Butt Maverick
Butt Pinto
Butt Windstar
Butt Freestyle
Butt Focus
Butt Ranchero

Thanks, McH!