3.7L, AT, Petrol, Leather interior2007 Hummer H3 is available and ready for viewing. Key specs include automatic transmission, petrol engine, Grey finish. Highlighted features: 3700cc Vortec inline-5 petrol engine, 5-speed manual transmission, full-time 4WD system, full black leather interior, panoramic sunroof, military-inspired styling, and more. Contact the dealer for inspection, test drive, and final offer.