Jaguar is working on a new modular aluminum architecture that will define future models for years to come. An array of vehicles, from sports cars to SUVs, will be constructed using this versatile platform, and to prove the point the British carmaker has created a design study dubbed the C-X17 that will be showcased at Frankfurt next week. From the single teaser image, the concept appears to be a crossover with F-Type-style taillights, tailgate-mounted spoiler, and an elegant sloping roofline. This is one to keep an eye out for in the coming days.