The Model 6-70 evolved from the design of the superb 4-cylinder model by adding two more massive 5.5-inch bore cylinders while keeping the same 5.5-inch stroke. The typical American engine at the time had a longer stroke, often up to 7 inches, which gave excellent torque but at the expense of flexibility. Thomas's free-revving 6-cylinder resulted in a hugely powerful motor with a very sporting character. Thomas offered a number of different coachwork options for the 6-70, but this example is unusual. It still has its original body and is the only 5 passenger model in the world. Its current owner purchased the car from john Mozart in 1999.