Description
I sell Maserati Spider Biturbo Zagato 2. 0i V6.
Always kept in a garage.
Good overall condition.
Gearbox and clutch recently replaced, mechanically impeccable.
First paint, underside rust-free.
Price non‑negotiable.
Characterised by a classic and elegant three-box coupé line (the authorship of which lies with Maserati’s internal design team led by Pierangelo Andreani, Chief Stylist, though influenced by Giugiaro, designer of the 1979 Quattroporte to which the Biturbo draws inspiration[1]) and by a traditional technical layout (front longitudinal engine, rear‑wheel drive, front suspension with independent wheels, rear suspension with trailing arms and braking system with discs on both ends), the "Biturbo" was launched in 1982.
The engine, a DOHC V6 fuelled by carburettors, derived from the Merak’s, differing in valve count (3 per cylinder instead of 2) and in the turbocharging system consisting of 2 turbochargers, one per bank (hence the Biturbo name).
Engine of a 1985 Maserati Biturbo 2. 5‑litre with 18 valves and IHI bi‑turbo[2]. It was one of the first road cars to use a multi‑turbo system[3].
To meet the projected output of 35 examples per day, only the engine and suspension were assembled at Maserati in Modena; the rest of the car was produced at Innocenti in Milan Lambrate.
In 1984 the Biturbo S was introduced, of which 1, 038 units were built up to 1986, with a 2. 0‑litre engine boosted by an intercooler allowing turbo pressure up to 205 bhp, 4 brake discs, interiors with various finishes with Missoni fabric for the seats, different instrumentation and sportier livery with a black honeycomb grille, darkened window surrounds, cast wheels, NACA‑type air intakes on the bonnet (to cool the intercoolers), rear spoiler, black bumper trims and side skirts.
Additionally, in the same year a turbo management system named M. A. B. C. Maserati Automatic Boost Control was introduced on all versions, used to limit turbo overboost.
A Maserati Biturbo 420i from 1986
In 1985 the Biturbo 425 and Biturbo Spyder were also launched. The former was the four‑door saloon variant based on the stretched coupé platform, while the latter was a 2‑seat spider based on the shortened platform, born from Zagato’s pen.[4] Both were powered by a 2. 5‑litre twin‑turbo V6 of 192 hp. A few months later, available only in Italy, were the Biturbo 420 and Biturbo Spyder 2. 0, driven by the V6 reduced to 1996 cm³ and 180 bhp.
In 1986 the Biturbo 420 S was also introduced, with aesthetic variants similar to the Coupé S and a 205 bhp engine. Only 2, 810 units of the 420 and 254 of the 420 S were produced before the introduction of the new engines.
In 1987 all engines adopted Multipoint electronic injection, delivering smoother operation and a slight power increase, but losing some of the carburetted engines’ rev, with 187 bhp for the Biturbo 2. 0i (coupe and Spider) and Biturbo 420i, 220 bhp for the Biturbo 2. 0 Si and Biturbo 420 Si which also adopted wider wheels of the same diameter (7jx14) and 196 bhp for the Biturbo 2. 5i (coupe and Spider) and Biturbo 425i.
In 1988 a restyling by designer Marcello Gandini[6] revolutionised the range. All versions adopted a softer front end, new bumpers, different wheels, new interiors with changes to the dash, seats, door panels and fittings substantially improved. Engines revised or new: at the base the 1996 cm³ three‑valve‑per‑cylinder fuel‑injected V6 of 223 bhp powering the Biturbo 222 (coupe), Biturbo 422 (saloon) and the Spider 2. 0i.
