Indeed - it looks a lot different - I never would have guessed they are the same car. Witton actually built a handful of specials in the 1960's, along with formula cars.
Are these indeed the same car? I suppose that the car could have been modified over the years, as was typical of low-budget constructor-racers. Here are more pics of the car in woodinsight's puzzle:
[attachimg=1]
[attachimg=2]
[attachimg=3]