This is a special version of the VW Beetle from 1947. It listens to the name 'V2 Sagitta' and is built by Kurt Volkhart according to plans by the aerodynamicist Baron von Köng-Fachsenfeld. The technique of the Beetle that time with 18 kW (24.5 HP) boxer engine is integrated into a tubular space frame, spanned by a lightweight aluminum body.
When you consider that, for example to the time the 356 originated, whom this construction incidentally is more similar than the real Beetle, woolen threads still were used, which at high speeds were photographed from a bridge, then the low air resistance of this construction, approximately emerged contemporaneous is remarkable.
After its rebirth it has been namely transported in the Wolfsburg wind tunnel and determined with 0.217 at 2.10 m³ cross-sectional area a drag coefficient that is unmatched by any vehicle currently built in mass production. Only the Mercedes CLA comes very close to it with 0.23 and the VW XL1 produced in small series surpasses it with 0.189 at 1.5 m³ cross-sectional area.
The car therefore represents a particular achievement for the time in which a Volkswagen Beetle had a drag coefficient of 0.46 to 1.8 m³ cross section. By the way the wheel guards contribute very much to the lower air resistance, while a rear spoiler, surprisingly, only very little effect. After all, the car delivers with the low engine power 140 km/h. However, appears somewhat exaggerated the then obviously from the manufacturer specified value of 0.16. 03/13
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