As manufacturers continue their trend towards using less and less gasoline, engines are becoming smaller and turbocharged to make up for the lack of displacement, as we're seeing with the mighty-mite 2022 Mercedes-AMG CLA45. But turbos suffer a Catch-22 of sorts; want it to work better at lower rpm? You going to want a smaller turbocharger that can spin up faster—but that sacrifices ultimate power at higher rpm. Or go big with the turbo, make huge power up high, and suffer abysmal low-rpm or post-lift-throttle response. Superchargers and an exhaust-based anti-lag systems can deal with these issues, with trade-offs of their own. Mercedes-AMG has chosen door number three with its new SL43 roadster.
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