I should have mentioned, as well as two 1964 cars of Richie Ginther and Graham Hill, the 2013 Spark catalogue also lists two more BRM P261 models...
SPARK S1158 : BRM P261 #12 Winner Monaco GP 1966 - Jackie Stewart
SPARK S1159 : BRM P261 #24 Belgium GP 1966 - Bob Bondurant
To check out the full list of 2013 Spark releases, go to www.spr-models.co.nz and click on the 'Future Releases' button.
Cheers, John