sentences:  The Duet, introduced in May 1999, was a shortened variant based on the bodyshell of the 2141 Aleko and using the ornate, chromed grille of the Ivan Kalita.In 2002, just four months before failure, the Duet received a slight grille facelift update, using a sleeker unit similar to that of the Knjaz Vladimir (Series II).All 2142 models were fitted with Renault engines, which was an initiative on the side of the projected merger with AvtoVAZ in the late 1990s.