Personally, I'd like to see learner drivers being taught to drive in saloons rather than hatchbacks, so there's a bit more of a challenge to it and you actually have to know where the extremities of the car are.
I would happily do another driving test in a saloon rather than a hatchback.
Having driven a few vans, hatchbacks and estates since passing my test in 2005, in September I bought a saloon. I'm finding it harder to park than a LWB van I used to drive. I can't see the back end very clearly, made more difficult by a spoiler on the edge of the boot lid.
It's a lovely car driving forwards or I wouldn't have bought it due to the difficulties reversing!
I certainly agree tests should be taken in more challenging cars!