註一:資料來源 Euro-NCAP 歐洲新車安全評鑑協會http://www.euroncap.com/whiplash.aspx
註二:資料來源美國國家公路交通安全管理局(NHTSA, National Highway Traffic Safety Administration)http://www.nhtsa.gov/ (National Highway Traffic Safety Administration. 2004. Federal motor vehicle safety standards; head restraints; final rule. 49 CFR Part 571)