The stick of butter is easy: it contains about 800 kilo-calories.

This can be converted to 0.94 kWh: (calories)(joules per calorie)(watts = joules/second)(kw = 1000w)

Kinetic energy is 1/2(v*v^2)

The average SUV weighs about 2000 Kg. That yields about 0.55 KWh. Perhaps the parent used a larger SUV.