Elizabeth “Liz” Johnston was surprised with a new car on 7 Little Johnstons. However, it’s not the only new addition she’s received recently, as the reality TV star just welcomed a baby girl. 7 Little Johnstonsis the family show featuring the world’s largest known family of achondroplasia dwarfs. Cast member, Elizabeth Johnston, known as Liz, was surprised by her parents, Amber and Trent. Liz Johnston surprised with new carLiz Johnston has been given a new car by parents, Amber and Trent Johnston. Anna and Emma also competed to give Liz the best baby gift, while Jonah switched rooms as his par…