The $340,000 Cadillac Celestiq flagship EV, initially set to debut in 2024, has yet to enter production or open pre-orders.Jay Leno had the opportunity to drive a pre-production Celestiq and was impressed by its features and performance.The Celestiq comes with a powerful 650 horsepower from two motors, unique suspension components, and sporty handling.The car includes standard luxurious features, such as four-quadrant electrochromic glass, and is set to compete with rivals like Rolls-Royce.