A faster edition called the 111S, named after the Lotus type-number of the Elise (Type 111), was introduced in early 1999 and had the 1. 8 Rover K-Series engine also used in the Rover MGF. It featured a VVC system providing continuously variable lift and duration on the intake valves only. This technology, producing a flatter torque curve from lower down the rev range and a declared 143 bhp (107 kW; 145 PS). A small but useful improvement over the standard 16 valve Rover 1. 8 L K-series 118 bhp (88 kW; 120 PS) inline-four unit. Fitted with a closer ratio manual gearbox and lower ratio final drive the acceleration was improved. Minor changes include more padding in the seats, headlamp covers, rear spoiler, cross drilled brake discs, alloy window winders and a six-spoke wheels. The rear wheels being slightly wider than before necessitated the fitting of "spats" on the back of the rear wheel arches to comply with EU regulations. The 111s was also fitted with a "chipcutter" front grille.