Now sharing the powerful 3.7-liter V-6 engine with the Infiniti G37 Coupe, amid several other enhancements, the 4-door sedan has been re-introduced as the ""G37 Sedan"" for 2009. The new model will be ...

Parents looking to add some excitement to their lives might consider the Infiniti G sedans. The G25 has a 218-horsepower, 2.5-liter V-6, and the G37 has a larger 3.7-liter V-6 that makes 328 hp.