The FMR Tg500 was a sports car built by Fahrzeug- und Maschinenbau GmbH, Regensburg (FMR) from 1958 to 1961. Based on the Messerschmitt Kabinenroller monocoque, which otherwise was a platform for three-wheelers, the Tg500 was a four-wheeled car with a two-stroke straight-two engine. FMR had taken over production of the KR200 from Messerschmitt in 1956. While the KR200 still used the Messerschmitt name and logo, the Tg500 was badged as an FMR.
"Tg" unofficially stood for Tiger.
| image = 2011-08-13 185 FMR TG 500, Sachs-Motor.JPG
| upright = 1.25
| caption = Tg500 engine and rear suspension
| manufacturer = Fahrzeug- und Maschinenbau GmbH, Regensburg (FMR)<br/>(designed by Fichtel & Sachs)
| production = 1958-1961
| configuration = Straight-twin engine
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| valvetrain = Piston-ported two-stroke
| compression = 6.5:1
| fuelsystem = Bing downdraft 28 mm carburettor
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| fueltype = Two-stroke petrol-oil mixture
| oilsystem = Petrol/oil mixture:<br/>30:1 for a new engine<br/>40:1 after broken in
| coolingsystem = air, one induction fan per cylinder
| power = at 5000 rpm
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| torque = at 4000 rpm
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The Tg500 ran on a air-cooled two-cylinder two-stroke engine positioned transversely over the rear wheels. The engine, designed by Fichtel & Sachs, was built by FMR.
Performance
thumb|left|The four-wheeled FMR Tg500 at the Nürburgring in 1976
In stock form, the Tg500 accelerated from rest to in 28 seconds and went on to a top speed of . At a similar price, the first series of the Austin-Healey Sprite accelerated from rest to in 21 seconds and went on to a top speed of .
Data
- Heating/air conditioning: via exhaust heat exchanger