Today, almost every single luxury-branded car comes with a turbocharged engine, ranging from the compact Lexus NX crossover to the mighty Mercedes-Maybach S 680. But that wasn’t always the case. Until the mid-2000s, most turbos suffered from laggy, peaky power delivery that wasn’t quite smooth enough to suit a luxury brand. In 2007, Acura took a gamble with the RDX by attaching a little snail to the engine.
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