emonster tools

Supercar ownership reserve calculator

Budget tyres, brakes, servicing, repairs, fuel, and value changes for low-mileage exotic and collector cars.

Your inputs

The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.

≥ 0
≥ 0
0.1–100 yr
≥ 0
≥ 0 L/100 km
≥ 0
≥ 0
≥ 1 km
≥ 0
≥ 1 km
≥ 0
≥ 0
≥ 0
≥ 0
≥ 0
≥ 0

Calculations run in your browser. Inputs are not saved or sent to analytics.

Your result

Complete the inputs to see your result.

How it works

  • Annual tyre reserve = Distance in kilometres × Tyre set replacement cost ÷ Tyre set service life
  • Annual brake reserve = Distance in kilometres × Brake replacement cost ÷ Brake service life
  • Annual cash budget with reserves = Fixed annual costs + Fuel consumption cost + Annual tyre reserve + Annual brake reserve
  • Annual cost including value change = Annual cash budget with reserves + Annual value loss or gain

Assumptions and limitations

Tyre and brake life are entered in kilometres even when annual distance uses miles. Usage reserves are proportional to mileage and do not account for age-based replacement or track wear. Fuel price is per litre. Value change and annual interest are separate from purchase principal or loan repayment. Enter local taxes as amounts; no tax jurisdiction is assumed.

Sources

Car auction

Cut-list planner

Voyage cost