Quote:
For Manufacturers, 7 additional test days may be allocated to each team in addition to Art. 66.4.2.
These additional days will only be applicable to guest drivers who have not been nominated to score points
up to the requested testing date in the Manufacturers Championship in the previous or current year. Teams
should advise the FIA of any guest drivers’ test, by email, five days in advance, with copy to all other
registered teams (no test form required). The test must comply with articles 66.1 and 66.2.
By using Huttunen, they gain more testing days (although competing does not reduce testing days, but most likely he'll do also testing in addition to the events).