John McEnroe, showing the form that made him the world's No. 1-ranked tennis player last year, took less than two hours to defeat Brian Gottfried, 6-3, 6-2, 6-4, yesterday to win the final of the $200,000 Grand Prix tournament in London's Wembley Arena.

In regaining the title he lost last year to Jimmy Connors, McEnroe won the event for the fourth time in five years. The victory was worth $38,000.

McEnroe, tuning up for the United States' Davis Cup final against France at Grenoble in two weeks, took command in the fourth game. In tournaments and Davis Cup play, McEnroe has not lost a set since the U.S. Open in September, when he was beaten by Connors in the final. Bjorn Borg has beaten him in a challenge event.

"I must be close to playing the best tennis of my career," McEnroe said. "At any rate, I feel I am potentially at my best for the year ahead" . . .

In the States yesterday, Connors defeated Borg, 6-4, 3-6, 7-5, in an exhibition at the Seattle Center Coliseum.

The winner picked up $75,000 and the loser $25,000, but neither would talk to reporters after the match because, they said, there was not enough publicity leading up to the nationally televised event.