The Tbilisi was a four-seat Soviet home-built car made in Tbilisi by the taxi drivers Mikhail Gigoshvili and Vladimir Manukyan, who spent five years building it. It was a low, tobacco-coloured limousine of strict, elegant lines with a load-bearing unitary body. The engine, the whole transmission and the running gear came from the Volga, while the body was home-made to give the car swifter lines. The roof was flatter and…