I got this from another Lab attendant at work, but cant remember who.

BMW

Babbling Mechanical Wench

Beastly Monsterous Wonder

Beautiful Masterpeices on Wheels

Beautiful Mechanical Wonder

Big Money Waste

Big Money Works

Blastphemous Motorized Wreck

Born Moderately Wealthy

Break My Windows

Broken Money Waster

Broken Monsterous Wonder

Brutal Money Waster

Bumbling Mechanical Wretch

Boring Monotonous Wanker

Buick

Big Ugly Import Car Killer

Big Ugly Indestructable Car Killer

Big Ugly Indestructable Compact Killer

Chevrolet

Car Has Extensive Valve Rattle On Long Extended Trips

Chevy

Charged Heavily

Cheapest Heap Ever Visioned Yet

Dodge

Dead Or Dying Garbage Emitter

Drips Oil, Drops Grease, Everywhere

Fiat

Fucking Italian Attempt (at) Transportation

Failure in Automotive Technology

Feeble Italian Attempt at Transportation

Fix It Again Tony!

Ford

Fucked over rebuilt Dodge

Fucker Only Runs Downhill

Fucked on Race Day

First On Recall Day

First on race day

Fix Or Repair Daily

Found on road dead

Fraternal Order of Restored DeSotos

GM

General Maintenance

GMC

Garage Mans Companion

Generally Mediocre Cars

Get More Chicks

Got More Crap

Mopar

Most Often Passed At Races

Mostly Old Parts And Rust

Mostly Old Paint And Rust

Plymouth

Please Let Your Mother Out (from) Under The Hood!

Pussy Lips In Your MOUTH

SAAB

Stupid, Arrogant Asshole Babies

Such an arrogant bastard!

Swedish Automobile – Always Broken

TOYOTA

Too Often Yankees Overprice This Auto