The rover is likely to be a copy - in terms of size - of Nasa's Curiosity-Mars Science Laboratory rover, which is due to launch in November.

BBC: Smart UK navigation system for Mars rover

It usually takes several hours to a half day to print a copy of a human organ depending on its size.

WSJ: Next to Use 3-D Printing: Your Surgeon

"Although it is a different concept from the Smart Fortwo, with four seats, different size, and of different quality, it is still a blatant attempt to copy the design, no matter how it was executed, " said the spokesman, who refused to comment on Shuanghuan's denial.

FORBES: BMW, Daimler May Sue Over China 'Copies'

These specialists can also prescribe an exciting array of high-tech optical devices such as software and screen-reading programs that enlarge e-mail and Web site copy, as well as handheld devices that enlarge printed material of any size.

FORBES: Tara A. Cortes