at the Turin Motor Show in October 1966; a 2+2 Coupé version, built on a longer wheelbase, bowed a few months later at the Geneva Motor Show in March 1967. The two bodies showed very different lines, as they had been designed and were manufactured for Fiat by two different coachbuilders: the Spider by Pininfarina, and the Coupé by Bertone—where it had been sketched out by Giorgetto Giugiaro. Curiously the Spider type approval identified it as a 2+1 seater. The Spider had poorer interior trim than the Coupé, below par for its class: the dashboard was covered in vinyl, the metal-spoke steering wheel had a plastic rim, and the interior switchgear was derived from cheaper Fiat models. After a few months this issue was addressed, and Spiders produced after February 1967 had a wood-rimmed steering wheel as well as a wood trim on the dashboard like the sister Coupé car had since the beginning. Option lists for both models were limited to radio, metallic paint, leather upholstery, and for the Spider a vinyl-covered hardtop with roll-bar style stainless steel trim. The car was offered with an all-aluminium DOHC 2.0 L V6, coupled to a 5-speed manual transmission. The same 2.0-litre engine was used in mid-engined, Ferrari-built Dino 206 GT, which was introduced in pre-production form at the 1967 Turin Motor Show and went on sale in 1968. Fiat quoted for the Fiat Dino, while in 1967 Ferrari—presenting the first prototype of the Dino 206 GT—claimed despite both engines being made by Fiat workers in Turin on the same production line, without any discrimination as to their destination. Jean-Pierre Gabriel in "Les Ferraris de Turin" notes that, "La declaration de Ferrari ne reposait sur aucun fondament technique"—Ferrari's statement had no technical basis. The real reason for this difference was a mistake in between quotes made in SAE and DIN power output. Fiat Dino 2400, 1969–1973 In 1969, both Ferrari and Fiat introduced new 2.4-litre Dino models. The Fiat Dino 2400 premiered in October 1969 at the Turin Motor show; besides the larger engine, another notable improvements was independent rear suspension. The V6 now put out , and used a cast iron instead of the previous light alloy engine block; the same engine was installed on the Dino 246 GT, Ferrari's evolution of the 206. Whereas the original Dino was equipped with a rigid axle suspended by leaf springs and 4 shock