Charged with coming up with recommendations on reducing the environmental harm caused by transport, the committee also proposed fuel tax hikes and electric vehicle quotas to help Germany finally meet European Union emissions targets.
The proposals, outlined in a draft paper seen by Reuters, could prove controversial in car-mad Germany, whose decades-old motorway network is famous for "no limits" sections where drivers can put even the fastest cars through their paces.
Germany could be hit with heavy E.U. fines if it fails to reduce emissions of greenhouse gases and poisonous nitrogen oxides. Transport emissions, which have not fallen since 1990, are a particular target for reductions.
The government is torn between the need to protect Germany's crucial car industry, buffeted by a series of costly emissions cheating scandals in recent years, and the need to act to protect a rapidly deteriorating climate.
The paper says measures including a motorway speed limit of 130 kmh and fuel tax hikes from 2023, the abolition of tax breaks for diesel cars and quotas for electric and hybrid car sales could deliver half the greenhouse gas emissions cuts that are needed.
The National Platform on the Future of Mobility has yet to finalize the recommendations. It is due to report its findings at the end of March, which will then be incorporated into a climate change law the government wants to enact this year.
But the committee is well aware that many of its suggestions could be controversial.
"Not every instrument and every measure will be accepted," reads the draft. "It will take political deftness, diplomatic skill and a willingness to compromise to achieve the climate change goals."
Reporting by Markus Wacket.