Beschreibung:

BMW 1800 Ti/SA 'homologation specials' were campaigned successfully by the works team in the mid-1960s, most notably by Hubert Hahne and Rauno Aaltonen. The 'TISA' was based on the 1800TI (Turismo Internationale) whose immediate ancestor had been the 1500 saloon. Introduced in 1961, the 1500 was powered by a four-cylinder, overhead-camshaft engine with cast iron block and alloy cylinder head, which would evolve into one of the foremost competition units of its era. In its ultimate, turbo-charged, Formula 1 incarnation this extremely versatile little engine produced up to 1,500bhp in qualifying trim, powering Nelson Picquet's Brabham to the Drivers' World Championship in 1983. Built to meet the then current touring car race regulations, the limited edition 1800Ti/SA (Sonderausführung – special edition) came with a 130bhp engine (20bhp more powerful than that of the stock 1800TI) incorporating a counter-weighted crankshaft, larger valves, 10.5:1 compression ratio, competition camshaft and two twin-choke Weber carburettors. There was also a five-speed gearbox, the latter relatively rare on road cars at the time. The running gear was up-rated appropriately to cope with the increased performance, featuring larger front hubs and bearings, larger brake discs, stiffer anti-roll bars and quicker steering. The interior features Restall-Masterfit seats, central rev counter and special wood-rim steering wheel. Tested by Auto, Motor und Sport magazine in 1964, a BMW 1800 Ti/SA achieved a top speed of 192km/h (119mph) a quite exceptional figure for an under 2-litre saloon. Intended to raise BMW's international sporting profile, the 1800Ti/SA succeeded brilliantly; Hubert Hahne won the German national championship in 1964 and with co-driver Rauno Aaltonen disputed the lead of the Spa 24-Hour race with a Mercedes-Benz 300SE, eventually finishing second. BMW went one better the following year when Pascal Ickx and Gerald Langlois' 1800Ti/SA secured the first of the Munich manufacturer's string of victories in this prestigious event. The roll call of TISA drivers also includes Dieter Glemser, Josef Schnitzer (Schnitzer Motorsport), Willy Mairesse, Jacky Ickx, Dieter Quester, Freddy Kottulinsky, Gijs van Lennep, Helmut Kelleners, Clemens Schickentanz and Wim Loos, among others. Only 200 genuine factory-built 'TISAs' were made, most of which are either in private ownership or German museums, so the appearance of one on the open market is an event of considerable importance. The example offered here is one of only four supplied new to Sweden in 1965, its first owner being Torsten Bachström, who used the car for ice racing. Restored between 1991 and 2000, it has an original Ti/SA engine from one of the other three cars supplied originally to Sweden. 1965 wurde neben den Standardtypen das Sondermodell BMW 1800 Ti/SA (SA=Sonderausführung) in 200 Einheiten als Homologationswagen für den Motorsport gefertigt. Das Fahrzeug wurde ausschließlich an lizenzierte Renn- und Sportfahrer in Europa und den USA ausgeliefert. Technisch zeichnet sich der 1800 Ti/SA durch umfangreiche Modifikationen am Motor aus, (u.a. größere Ventile, 30-Grad Nockenwelle, zwei Weber-Doppelvergaser, Verdichtung 10,5:1, Kurbelwelle mit 8 Gegengewichten), hieraus ergaben sich "mindestens" 130 PS bei 6.100 U/min) und eine Höchstgeschwindigkeit von 180 km/h (Testwert A.M.S. 24/1964: 192 km/h). Ein verstärktes Fahrwerk samt Bremsscheiben, Fünfgang-Getriebe,sowie eine direktere Lenkübersetzung rundeten das Bild ab. Im Innenraum ist der Ti/SA an speziellen Schalensitzen des Typs Restall-Masterfit, einem großen vorstehenden Drehzahlmesser und einem speziellen Holzlenkrad zu erkennen. Mit dem BMW 1800Ti/SA feierten BMW Fahrer zahlreiche Siege. Unter anderem gewann Hubert Hahne 1964 mit diesem Fahrzeug die 'Deutsche Rundstreckenmeisterschaft' und wurde beim 24h-Rennen von Spa Francorchamps, mit Rauno Aaltonen als Copilot, Zweiter. Im darauffolgenden Jahr konnte BMW mit einem 1800Ti/SA dieses R