Ferrari 12Cilindri 嘅車身長 4,733 mm、闊 2,176 mm、高 1,292 mm，軸距 2,700 mm。相比前代 812 Superfast，車身加長咗 70mm，但軸距反而縮短咗 20mm，配合後輪轉向系統，操控更加靈活。
The Ferrari 12Cilindri measures 4,733 mm in length, 2,176 mm in width, and 1,292 mm in height, with a wheelbase of 2,700 mm. Compared to the 812 Superfast, the body is 70 mm longer but the wheelbase is 20 mm shorter, which, combined with rear-wheel steering, makes handling more agile.
