The Time Trap. John Russell Fearn

There are six people in millionaire Nick Clayton's limousine when it leaves a country home to return to London: Clayton himself; his girlfriend, Bernice; Dawlish, his driver; the unhappily married financier Harvey Brand and his wife, Lucy; and the tragic socialite, Betty. But the car never reaches its destination; instead, it drives thirty miles down a country road–and just disappears! And when the travelers suddenly find themselves in an alternate reality, one where time stands still, they begin wondering if they'll ever escape…THE TIME TRAP!