What kind of vehicle is the 2023 BMW Z4? What does it compare to? Slippery, sexy, and sporty, the 2023 BMW Z4 is two cozy seats atop a capable chassis, fitted with a choice of turbo-4 and turbo-6 engines. With few sport roadsters on the market, competitors are varied: the Jaguar F-Type, the Mazda MX-5 Miata, perhaps even the Chevrolet Corvette. Is...