The Sports Aero model boasts a larger rear spoiler and lowered suspension.
The move counters criticism that the 260bhp model doesn’t look sporty enough.
The new version will cost £19,495 – a £500 premium over the standard MPS.
Residual values for the car have been set, with Glass’s estimating it will retain 38% of its cost new after three years/60,000 miles, with CAP coming in at 37%.
That compares with 39% for the Ford Focus ST and 40% for the Vauxhall Astra VXR.
Glass’s forecasting editor Jason King said: ‘A very high standard specification gives the discerning super-hatch buyer a real alternative to the established players.
CAP’s manufacturer relationships manager Martin Ward added: ‘The Sports Aero kit not only increases the differential from the standard MPS, but is essential when it comes to resale because used buyers will want the bling.’