6. Infiniti Q45
The Infiniti Q45, launched in 1990, was a pioneer in integrating advanced technology with luxury. Its active suspension system, known as Full-Active Suspension™, utilized electronics and hydraulics to provide a unique combination of outstanding handling and a smooth, comfortable ride. The interior featured real burl wood trim and a Bose audio system, rivaling European flagship sedans. Its understated design concealed a wealth of high-tech features typical of much pricier competitors. (infiniti.com)