Mini designer, Alex Issigonis had input into the design of the TC 21/100, marketed as the Grey Lady.
Announced on October 20 ,1953, the Alvis TC21/100—or “Grey Lady” as it was marketed— featured a 3-liter Straight-6 engine capable of propelling the large sedan to a top speed of 100 mph. Mini designer, Alex Issigonis had input into the design of the Alvis TC 21/100.