Pontiac Moon

Pontiac Moon is a 1994 adventure film directed by Peter Medak, and produced by Robert Schaffel and Youssef Vahabzadeh.

When Katherine finds out where her husband and son are going, she faces her fears she hasnt been out the house for seven years, and follows them in one of Washingtons cars, an Amphicar. She learns the importance of living as she follows the Pontiac to Spires Of The Moon. On the way, the Pontiacs engine dies, and Washington arranges for a mechanic to install a replacement engine, only to leave the premises without paying for the engine because he didnt have enough money to pay. At the moment of the Apollolanding, the Pontiac crashes into a crater at Spires of The Moon, with Andy at the wheel. Katherine arrives, and they escape a police chase by driving the Amphicar into a lake to Canada and safety.The adventure brings the Bellamy family together, and they are now ready to begin a more normal life. ........

Source: Wikipedia