请帮忙理解这个英文句子Aside from working with Mr.Agassi's company,Renau

请帮忙理解这个英文句子
Aside from working with Mr.Agassi's company,Renault and Nissan plan to launch small electric vehicles,designed and engineered from the ground up and sharing many common components,on their own by 2010,said two people familiar with the plans.
本句中from the ground common components是什么含义