Infiniti's has released pricing on its UK market M37 model that's powered by a 3.7-litre petrol V6 engine The Japanese firm's BMW 5-Series rival will be available in five different grades priced from �35,150. The M range will be extended by the M30d diesel in October and the M35 hybrid in spring 2011, with prices and specifications for these versions to be announced at a later date.