decade's end. Sales of the fifth generation had dropped to under 27,000 cars in 1988, while almost 77,000 Minicas were sold in 1989 (nearly all being of the new generation). An advanced new turbocharged engine with double overhead cams and the world's first mass-produced five-valve-per-cylinder engine was introduced for the Dangan ZZ model, producing . The Dangan was originally a commercial vehicle, but became a passenger car in August 1989. It was later made available in naturally aspirated form as well, as the Dangan Si and Dangan Ri. In May 1991 an automatic option was added to the Dangan ZZ. The van models gradually lost importance as their tax advantages were whittled away, with buyers increasingly going for the passenger models. In August 1989, however, a new commercial use model appeared in the form of the Minica Walk-Through Van. This version took full advantage of the maximum 2-metre height limitation on kei cars at . The Kei car standards were altered for 1990, allowing for a increase in length and an increase in displacement to 660 cc. The Minica's engine was now 657 cc, while the front bumper gained and the rear bodywork was altered to grow by . The wheelbase remained unchanged, while a black plastic element was added behind the rear windows to fill the extra space. Chassis codes changed to H22 and H27. A tall three-door MPV model with optional four-wheel drive, the Minica Toppo, was also introduced in February 1990 - the Toppo, being developed before the new regulations were finalized, did not take full advantage of them and ended up shorter than other kei cars. The Dangan Turbo only received its increase in displacement and increase in length in August 1990, six months after the rest of the range had been updated. In January 1992 the range received a light facelift, along with some new models. New were the Piace and Milano sedans, celebrating the thirtieth anniversary of the Minica, and the Dangan ZZ-Limited which has standard ABS brakes. In January 1993, shortly before the line was replaced, the Milano Limited and Milano four-wheel-drive were added. Export versions were still usually carrying the "Towny" label and featured an 800 cc engine. Seventh generation In September 1993, the seventh-generation three- and five-door Minica and Minica Toppo were introduced, with longer wheelbase. The five-valve-per-cylinder three-cylinder engines were replaced with a pair of 659 cc four-cylinder engines; one