General Discussion
In reply to the discussion: Car and Driver: The danger of keyless ignitions [View all]MineralMan
(151,333 posts)It improves the city driving gas mileage in the testing that is done. In theory, it's a good idea, but in practice, it puts an extra load on the starter and battery. Maybe not much, but extra. Like you, I also find it unnerving to have the engine shut down. I do sometimes forget to push the button that disables it, but the first time it turns off the engine, I remember and disable it. I notice the difference in the time it takes for traffic to get going again at traffic signals, too. It's a real thing.
Neither of my cars, a 2020 and a 2021 model, has the other "helpful" features like lane monitoring and side traffic alerts. I'm not willing to spend extra for those "nanny" features. I don't need help with steering and am very careful to check mirrors before changing lanes. It seems to me that many of those features work to make people less attentive, as they grow to trust the car to keep them out of trouble, rather than their driving skills.