I found a test plan for this on the old 5 series [1] BMW say the engine should return to idle speed "immediately." The wiring diagrams imply that for this car,

I found a test plan for this on the old 5 series [1] BMW say the engine should return to idle speed "immediately." The wiring diagrams imply that for this car, the electronic throttle was only applied to cars with automatic gearboxes and traction controls, the benefit here being that the electronic throttle can act to limit engine power during gearbox shifting or during intervention of the traction control. So it looks like VW was rather thoughtful to introduce this delay, when there is a manual gearbox. Wouldn't the left foot braking be more useful in a car with a really light front end, like MR2 or other mid-engines? [Edit: My 5 series is a manual shift with traction control, with a v8 engine that never got electronic throttle on this series. There is a second throttle plate ahead of the usual throttle that the traction control will close during intervention.] [1] https://www.bmwtechinfo.com/repair/main/741en/images/7410265.jpg https://www.bmwtechinfo.com/repair/main/741en/images/7410265...