Westfield Sportscars, a British manufacturer based in Kingswinford, produces the Seven as a lightweight open-wheel kit car and factory-built roadster directly inspired by the Lotus Seven formula. The model follows the classic spaceframe-and-cycle-wing layout, prioritizing minimal weight and direct driver feedback over comfort or refinement. Variants have included versions accommodating a range of donor or purpose-built engines, from modest Ford units to high-output motorcycle-derived powerplants, allowing buyers to tailor performance to their budget and intended use.