Yep, dws rear, macpherson struts front on DC5/EP3. But in answer to "The Meist_R"'s original question, the rear suspension is whats causing the "edgeness" on uneven surfaces. This is not only true for the DC5, it is the same for EP3, S2000 and even an F1 car.
Taking a crude example with 2 extremes to illustrate my point - an F1 car vs a rally car on a rough uneven surfaced corner. The F1 car would bounce and slide as it stuggles to find traction and would not stand a chance against the rally car even if the travel and ride height was increased. However on a smooth tarmac track the rally car's suspensions set up would be inferior to the F1's dws. This is an exaggerated example as there are many other factors to consider.
As said the macpherson struts are compact, lightweight, fewer parts and also cheaper than dws but they are only compact in direction, laterally - freeing space for the engine and steering. They are still susceptible to changes to camber and toe under high cornering forces and "bumps" unfortunately and also induce a higher cog.
It is the rear suspension that is the issue here, as so many people with type-r's have identified. Try cornering a type-r on a sharp bend on an uneven surface, the rear end will skip all over the place. Macpherson struts with its longer travel in the rear will behave more forgivingly as it is able to tolerate the bumps and will tend to give some feedback to the driver when it is about to lose traction under these circumstances.
The DC2 has dws all round which allows it to turn into the corner earlier and sharper, this is one of its main weapons when it was first released. But given a rough road the DC2 will have the same fate. I've no idea whether the DC2 will corner faster than a DC5 on the track though as this depends on a number reasons such as its weight, tyre size, chassis, polar moment of inertia, balance etc.
