Is zakat obligatory on capital recovered from selling a car after five years? And how is it calculated?

Zakat is obligatory on a car if it is for the purpose of trade, and its due amount is a quarter of one-tenth (2.5%) of its value if each partner's share reaches the nisab. However, if it is for personal use or rental, Zakat is not obligatory until a year has passed on the recovery of the principal, provided it reaches the nisab.