Jay Leno owns a 1987 Lamborghini Countach and has driven it more than 70,000 miles. Leno featured a 1989 Countach 25th Anniversary Edition on his YouTube show. The Countach taps the Lambo 455-hp 5.2-liter V-12 for power. The Lamborghini Countach is a car Jay Leno knows intimately. He’s owned a 1987 example since new, and over the almost four…