One of the main improvements for the upcoming Volkswagen Golf VII GTI is a mechanical limited-slip diff.
A modest power increase from 155kW to somewhere around 170kW is expected to be accompanied by a handy 25% increase in torque (up to 350Nm, from 280Nm).
A lighter, more powerful GTI with a proper slippery diff should help to keep it at the top of the hot hatch shopping list.