To set it further apart from the "45", a lower compression rate was chosen. Nonetheless, the smaller engine had to work that much harder to keep up, and in practice the fuel economy savings were negligible. When the Marbella was introduced in December 1986, the smaller 843 cc version continued to be available. This low-priced version produced only at 5,600 rpm and was not available with the five-speed transmission. Top speed for the bigger engine was , while the 850 could only reach . 903 cc version of the engine later got electronic injection and reduced its size to 899 cc. Several differently labeled models were produced during the lifetime of the car, with few corresponding significant changes in specifications. Common models include the L, Special, XL, GL, and GLX, but there were many "special editions", especially later in the life of the Marbella. In September 1989 the "Black", "Red", and "Yellow" specials were added, "Blue", "Green", "CLX", and "Jeans" joined in September 1990. Various export markets also received market specific editions, such as the "Le Jouet" series marketed in France in the early nineties. A van version of the Marbella, called the SEAT Terra (codenamed "24" for SEAT Terra and "024A" for SEAT Terra box), was produced in Spain from 1987 to 1996 when this model was meant to be replaced from its successor, the SEAT Inca. The SEAT Terra shared the underpinnings and front of the Marbella, but the back was replaced by a large, high metal box; there was also a load rack above the cab roof. It was very popular in Spain, and was also available in export markets. Before this, a van based on the Marbella's predecessor (the SEAT Panda) was also available until 1986. In much the same configuration as the Terra, it was called the SEAT Trans and was extremely similar to the Fiat Panda's commercial version . In 1982 SEAT produced in its plant in Zona Franca a popemobile car, a modified version derived from the SEAT Panda, which was used during the Pope John Paul II's 1982 visit in Spain. That specific vehicle was an 'all-open-air' car with a grab handle in front so that the Pope could stand still to greet the crowds, while the vehicle was in motion. In that car the Pope entered the FC Barcelona Camp Nou soccer stadium driving through the assembled crowds celebrating mass for a congregation of over 121,000 on 17 November 1982.