LP400 (1973-1977) edit The engine of an LP400 The first production version was equipped with the 3,929 cm³ engine of the Miura. The engine still provided 375-385 DIN hp (280-287 kW) at 8,000 rpm. The declared top speed was 315 km/h, thanks to the use of conventional section tyres, making it the fastest version of the Countach ever. This car was fitted with 215 mm tyres on 14-inch rims. The feature that made this model famous is the characteristic "cut" on the roof, necessary to make room for the periscope rear-view mirror. This detail was later abandoned[11][12]. Nevertheless, the cut in the roof remained, and earned the Countach LP 400 the nickname "Periscopica." Contemporary sources speak of 151 examples built, of which only 21 were right-hand drive. These numbers make the LP 400 the rarest and most sought-after of the Countach series.[citation needed] Furthermore, all Countach LP400s have even chassis numbers; only number 1120001 (displayed at the Lamborghini museum) has an odd chassis number.[citation needed] Production from 1120002 to 1120300 (150 examples) ended with the delivery on 2 January 1978 of the last example (black with white interior) sold in Belgium. Credits to:Wikipedia. inspirated from:Gran Turismo 7 and My First Gran Turismo