It is without a doubt financially FAR better to buy a recently used car, even if it's only one year old. ESPECIALLY if it's only one year old.
On almost every make or model, a car depreciates over 25% over it's first year. Did you spend $30k on a new car? Congrats, it's worth $22,500 after one year. I hope you put a crap-ton of KM's on it to justify driving a year in a new car for $7,500.
"How much does it depreciate in the second year", you ask? Oh, about 6 to 10 percent. The "premium" you pay to drive a car off the lot for the first year it's off the road is crazy. It makes no financial sense whatsoever.
If you can find a one-year old used car with under 20k km's on it, it's not even an argument. Of course, different maked and models will wear out faster than others, so it's not like you don't have to do your homework.