Is a perpetual motion plug-in EV a possibility? Tony has a theory.
Dear Car Talk
Bill and his wife had a car years ago that would overheat on steep grades if they ran the AC. They've upgraded their cars since then but now they disagree on whether they still have to use the heater on inclines. Who's side will Car Talk take?
The air suspension system on Bonnie's 2003 Lincoln Navigator seems to work fine until the weather gets cold. Can Car Talk diagnose the problem?
Richard notices that when he hits the "resume" on cruise control, it accelerates much faster than he would if he were accelerating manually. Is this good for his fuel economy?
The transmission on Bill's 2000 Volvo V70 is slipping. Is it safe to keep driving it? Car Talk's take, right here.
Karen learned to drive on a manual transmission and thinks it made her a better driver. But is it safer to teach kids on an automatic? Car Talk's advice, here.