Here is your challenge.
You like some go, ALL front wheel drive cars with 'go' have stiff chassis's, its the only way the torque can be put on the road (the rules of physics are difficult to beat) be it Audi, Gm, Ford the lot.
So your either looking at AWD or RWD or having to compromise on a stiffer setup in FWD format.
Thinking similar sizes, the A4 you will hate, the handling is naff and there dead small inside, the Passat is the same car. The Mondeo is a good car but, they dont age well, the Insignia is an aquired taste, good all round and nicely screwed together but the looks for some are questionable (although there are MUCH worse cars out there!). French stuff as we know is hit and miss.
The Chrysler you will wrap round a tree within a month, they really dont do corners and are akin to a whale with an outboard motor.
On Mr Clarksons understeer in the Vec C, if you drive and steer like they did in that clip, you could make anything understeer, the Vec C is actualy not nearly as bad a chassis as many make out, if they had done the sama in an Alfa (one of the best FWD setups out there) the result would have been the same (they applied fast excessive steering input to unstick the front wheel before straightening the steering up)
Then you get into your favourites such as Merc and BMW.