 Complete the following phrase:  Unconvinced by the performance of the Fondmetal Fomet-1 during the 1991 Formula One season, Fondmetals boss Gabriele Rumi ended his association with that cars designers. After initially negotiating with Tom Walkinshaw Racing, Rumi eventually gave the contract to Sergio Rinlands Astauto studio; Rinland had previously worked on the Brabham BT60, and the GR02 project was Astautos first. However, this change came too late for a new car to be ready for the start of the 1992 Formula One season and the Fomet-1 was duly updated into the GR01. Both the GR01 and GR02, however, were to ditch the old Cosworth DFR V8 engine found in the Fomet-1 and replace it with a Ford HBA5 V8 instead, resulting in a useful power increase of over . Development on the GR02 began at the start of 1992, and the first prototype ran at Ferraris Fiorano test track in May 1992. The GR02 had simpler mechanical components than the BT60 had, with a Xtrac gearbox and twin shock absorbers both front and rear. The aerodynamics, however, were less conventional; it featured a chiselled nosecone, and an anhedral front wing assembly, with the latter being designed to channel air around the floor and diffuser. The GR02 was first ready to race at the 