Interested in people's theory on what's the most cost effective method to buy and sell a car as daily transport. Specifically do you hold onto a car until it's actually dead, or sell it sometime prior when it's still worth something? Do you buy a new car and write off the depreciation, or buy a car 5-10 years old? How many km do you consider as too many to begin your journey in something different? What's the most important aspect of a purchase; safety, reliability, comfort, performance, economy, or something else? Curious for members opinions....