FEATURES What is a torque converter and what do they do? FEATURES Dual clutch gearbox: Why are downshifts slower than upshifts? ADVICE Paddle shifters: How do I use them? ADVICE Mechatronics: What is it and what to do when it goes wrong NEWS New 2020 Porsche 911 debuts with more power, technology FEATURES What is a dual-clutch gearbox? REVIEWS Renault Grand Scenic review ADVICE Does using the manual override function cause more wear? FEATURES MANUAL VERSUS AUTO REVIEWS Porsche Boxster S starts a rebellion, and resisting it is futile Next