What makes a Jag a Jag? That was the key question facing British designers as they penned the first totally new Jaguar sedan in more than 30 years. The company resurrected an old nameplate from the mid-1960s for this car and took many styling cues from the original S-Type and Mark II. That's not to say the car is a retro design; it is a thoroughly modern, sleek-looking luxury car with heritage.