Top definition
A car with great performance, but inderstated looks...
Shit the bed that RS4 is a bit of a street sleeper!!!

shame it looks so shyte!
by Karma Supra September 23, 2003
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2
A vehicle that has been mechanically tuned for performance, but looks visually very similar to (or the same as) the original vehicle.
Street sleepers are intended to surprise race challengers who underestimate their performance.
"damn, that must have been a street sleeper, there's no other way it could have beat me!"
by I AM Mr Smith July 22, 2012
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