Sleeper cars are among the most enjoyable cars on public roads. The combination of an under-the-radar exterior design paired with a potent powertrain that defies expectations is a formula that has become intrinsic to some of the automotive world’s most beloved cars. Do you remember the Audi S6 from the late 2000s? It had a bulbous physique that in no way echoed the might of the 5.2-liter V10 engine shoehorned into its engine bay, or the Volvo V70 R, which looked like a standard station wagon but relied on the strength of a rowdy turbocharged beating heart.
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