As a small business owner my expenses such as tank etc. At the EÜR state, is that possible?

I'm a small business owner and use the small business regulation (may calculate on my sales no sales tax or input tax claim). Since I buy many used things from private (tires and rims) I often drive over 150km (private car). Can I enter the driven km at the EÜR as expenses? And how does it look if I buy a laptop for 200 euro, I can also specify as expenses for the EÜR? And if so, where should I enter it? Example: I buy from someone private the 150km away lives his rims for 500 euro. Then buy me a laptop for 200 euro. Sell the rims on private for 1000 euro. Then I have to enter the following at EÜR or? Output: 500 euro for rims, 150km x 0,30 euro = 45 euro, Laptop 200 euro Total: 745 eurosRequest: 1000 euro Selling the rims Total: 1000 eurosI would then have to pay the 255 euro tax or am I wrong?

Costs associated with a trade must be evidenced (evidence) and credible. Travel costs can be set flat rate, but there you google, because there are many rules. Whether your FA recognizes that then is another question.

Define very often:

if the vehicle is used for more than 50% (ie more than 50% of the kilometers for the trade), the vehicle MUST be business assets