Advanced functions. Functions are easy to create in Excel and, by design, they simplify and automate tasks that would otherwise be much more labor intensive. That said, there are a number of functions that, in practice, require some skill in order to solve complex problems.
While not officially called the Ram Air I when it was issued, it was indeed the first in a series of Ram Air V8 engines from Pontiac. This engine was installed in the 1967 GTO/Firebird as the top of the line option and at 360 hp (270 kW) (underrated), it was the most advanced 400 in the line.
In 1968, Pontiac manufactured the Ram Air II which was a 400 cubic inch motor. In GTO trim the factory rated the car at 366 HP/445 Tq and 'only' 340Hp/430 Tq in the Firebird despite the fact that the engines were identical (save for a small throttle restrictor tab on the Firebird).