To celebrate one year of the book Invest Your Way, Mark and Shani tackle listener questions on some of the biggest decisions investors face, from calculating the true cost of everyday spending to working out how much risk to take in retirement.

The first is an expensive question – how much could owning a car cost you in retirement savings? They explore the long term opportunity cost of car ownership, using an illustrative example to show where you end up by investing the amount.

They also received a question on retirement income. If your portfolio generates enough dividends to cover your living expenses, do you still need to follow the 4% withdrawal rule? Shani and Mark unpack the risks the rule is designed to address, why living off…