This is an interesting question and we have found discrepancy among French officials whom we consulted on the topic.
An official at France’s Interior Ministry said that British tourists could drive their UK-registered car in France for up to 12 months – as long as they have the right to stay in France for that length of time.
However, a spokesperson for French customs said they could drive in France for up to six months.
It should be remembered that unless they have a visa that allows them to stay for longer, UK citizens are only permitted to visit France for 90 of every 180 days.
Temporary long-stay visas are rarely for more than six months. This could explain why the customs’ spokesperson cited six months.
You should check with your insurance company if you plan to drive a USA-registered car in France to make sure everything is in order.
A few weeks ago, we covered the situation of whether a UK national who is a resident in France can drive a UK-registered car in France.
The answer is that they have one month in which to re-register the car as French once it comes to France, otherwise it is illegal.