Available only in the Japanese market is the SR20VET that produces 206 kW (280 hp) and is used in the X-Trail GT. The Australian model is powered by a QR25DE 2.5 L 4-cylinder engine initially producing 132 kW (177 hp) From January 2006, the Australian-spec engine was detuned to 123 kW (169 hp). Also available is the QR20DE 4-cylinder engine, producing 103 kW (140 hp) or 110 kW (150 hp) with manual or automatic transmission. The biggest selling engine in the UK is the YD22DDTi, a 2.2 litre turbo-charged common-rail diesel. The X-Trail has had three model revisions, the Series 1 and Series 2 (using Nissan FF-S platform) and the Series 3 (using Nissan/Renault C platform). There were various cosmetic and engineering changes made between series 1 and 2 but the series 3 is all new despite a similar appearance with new engines apart from the 2.5L which has been retained.