tgferreira wrote:It is quite unstable and not very fast..
It won't be......and isn't really built for speed either! Look at what your engine is having to push through the air...a large big overslung top above the cab. Also the rear wheels are set inboard of the van body which in heavy cross winds will give an unstable feeling. Ford did a wide axle variant which solves this but i think it's only on later model vans.
As for engine type, the direct injection gives better mpg than the TDi....not to mention the cost of replacing a knackered turbo particularly if goes kaput in country miles away from home.