One problem related to manual transmission has been reported for the 2004 Infiniti G35. The most recently reported issues are listed below.
There was no crash or resulting injuries--but having a clutch which sticks may eventually lead to a catastrophic incident. The dealership addressed the problem at 50,000 miles, but it has since returned. There are many G35-devoted websites and blogs where G35 owners complain about the same problem, but it does not appear they have followed up by filing a complaint. Many owners report the same sticky clutch problem at various speeds. For me, it's happening at any speed whether it is slow or fast. Infiniti claims this requires a new clutch--given that the owners have had their problems at various points of mileage, I am not convinced this is related to the clutch itself. Thanks very much.