The 1800 and 1802 Touring models were early hatchbacks, designed by Michelotti and had the 1.8 liter engine. BMW started selling these in April of 1971. They featured split folding rear seats, making the large rear hatch extremely useful. Produced until April of 1974, by then, 30,206 were produced.
(image and info courtesy of Classic and Vintage BMW)
1971 BMW 1800 Touring