The second 400 GT, commonly known as the 400 GT 2+2, had a different roofline, and minor sheetmetal changes compared to the 350 GT and first 400 GT. It was first presented at the 1966 Geneva Auto Show. The larger body shape enabled the +2 seating to be installed in the rear, where the 350 GT only had room for luggage or +1 seating. The bodywork was designed by Carrozzeria Touring. The 400 GT 2+2 also had a Lamborghini designed gearbox, with Porsche style synchromesh on all gears, which greatly improved the drivetrain. When leaving the factory the 400 GT originally fitted Pirelli Cinturato 205VR15 tyres (CN72).