 Complete the following phrase:  Pedro Rodríguez took a P261 back to the Tasman Series for one final time in the 1968 season, and he took second place at the Longford round. But with the widespread availability of the Cosworth DFV 3-litre V8 in the 1968 Formula One season there was little reason for running with an outclassed and underpowered old chassis in Europe beyond the end of 1967. Nevertheless, chassis number 261 was fitted with the new BRM V12 engine, the H16s replacement, for a few non-Championship race entries. Its best result was third place in the Grand Prix de Madrid, although it was only the second race that the car managed to finish all year. Australian driver Frank Gardner attempted to qualify the V12 engined car for the 