Originally Posted by
landaqmabba
sorry my ignorance but does the sierra wheelbase differ between saphire and 3 door? (both cossie) as the 3 dr seems shorter than the saph it looks almost like the escort (in terms of lenght)
All Sierra's have the same size wheelbase, so that includes the Sapphire and the 3 door.
About being aerodynamically better... That just depends what you consider to be better. The Escort has more downforce (and therefore more grip), but this also increases the drag coefficient. Therefore the top speed of the Escort is lower than that of the Sapphire.
But converting an Escort will cost a lot of money, which you don't get back when you sell it. The real deal might cost a bit more, but it will most likely keep its value.