With little fanfare, Tesla Motors opened its showroom in Beijing on Nov 2 and has since welcomed more than 500 visitors a day.

But the all-electric luxury car made in Palo Alto, California still faces a challenge before it can actually roll into the Chinese market - a trademark dispute.

"We have basically finished all administrative approval procedures," an executive at Tesla Motors China division told the China Times. "If there is any barrier stopping it coming to China, it's the trademark."