Teens belong in something big (for safety), cheap (because they'll probably destroy it), and slow (safety again). Because of #2, I'd try to avoid anything particularly rare or classic. 123 wagons are too rare to give to some teen to total, unless they're almost there already.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.