For 1985, GM dropped the 252-cu.in. V-6 and made the 307-cu.in. V-8 the standard engine across the entire Riviera lineup. The turbocharged V-6 remained an available option on the convertible, with its price reduced to $735, but a mere 49 customers checked this particular option box. For the Riviera convertible’s final year on the market, GM built just 400 examples in total, priced from $26,797. With options piled on, however, it was relatively easy to price a Riviera convertible well beyond the $30,000 mark...
Video: 1985 Buick Riviera LaserDisc Promo