Remember last week's puzzler?

THE SPEEDY SAAB

RAY: This was sent in by a fellow named Hugh Rawlins.

Back in the ‘60s, I lived across the street from the world's biggest and most insufferable motor head. He loved American muscle cars, and hardly a week went by without my having to listen to this guy's latest automotive exploit.

Just outside of town there was an abandoned stretch of highway. It was straight and flat for miles and the perfect place for my neighbor and his kind to race their sports cars. I was never invited to race my car which had a four-speed manual transmission and a three-cylinder engine. It was a Saab. 

One day I challenged my neighbor to a race: my Saab versus his muscle car. I just had one condition: we race in reverse. He thought about it for a second and then said, "Sure! What do I care? I'll go backwards, forwards. I'll race you any way you want." 

I didn't possess any particular prowess so far as driving in reverse. Nor was I aware of any particular handicap on his part.

The starting gun went off, and within a minute he was far ahead. But little by little I closed the gap until finally I caught up to him and passed him. His engine was straining, with the tachometer at the red line, as he watched me cross the finish line first. How did I do it?