Let's talk math for a minute. Simple no nonsense numbers.

Even if the only tires I could find for this car cost $300 each...

$300 X 4 tires = $1,200.
$1,200 X .40 = $480

Pucker-factor doesn't stop a car, even a German engineered one.

Not to over-simplify or be repetitive, but don't be afraid to spend a couple of dollars on things that separate you from the ground.

Buy cheap paper towels...but buy good shoes and tires.