Colenta was a German maker of electric vehicles. An early product, the Colenta-Mobil, was a three-wheeler built by the company in Weiskirchen near Frankfurt and tested in Paris in 1985; it carried a 1.5-by-1.5-meter load bed, used drive batteries from the Austrian firm Bären Akkumulatoren that needed replacing after four to eight years at a cost of 4,000 to 5,000 Deutschmarks, and was priced overall between 15,000 and 20,000 Deutschmarks…