sentence1: While hybrid vehicles have found considerable popularity in the United States since their introduction, one difficulty associated with the rollout of a fully electric car has been the comparably high price and poor performance, compared to an internal combustion engine-driven car of similar size. Tesla Motors claims that their Model S, a sedan which runs solely on electricity, will be more affordable. Tesla first entered the automobile market in 2006, with a prototype of an electric vehicle designed on the roadster style. While the car, whose exterior design was based on the Lotus Elise, accelerated well and had considerable range, its cost of US$109,000 was prohibitive for many and to date only 300 have been sold, with a thousand more ordered.
sentence2: Model S is produced by Tesla Motors.