1990 BTCC
Vauxhall started the season with a single entry for John Cleland in the #50 car. A second car for Chris Hodgetts, running as #70, would appear at Oulton Park, initially in rear-wheel drive format but converted to FWD by the following meeting. The second car continued for the remainder of the season with Hodgetts, David Coulthard, Bob Berridge and Markus Oestreich all taking turns behind the wheel. There were a number of differences in the roll-cage design which help distinguish between the two cars.
From the head-on view you can see that the cross-over point in the diagonal roll-cage braces is higher on the #50 car. Although fairly clear when viewed side-by-side that difference is less obvious when viewed in isolation as it can be easily masked by the camera angle. The difference is more pronounced from the side view. On the #50 car the rear section of the roll cage visible through the side window is at a much shallower angle and extends the full width of the window, whereas on the #70 car the brace disappears below the bottom of the window much further forwards.We know that the #70 car was chassis number 011, and is generally considered to be the first car to be built. It would be reasonable therefore to assume that Cleland's #50 car could that be chassis number 012.