Glossary
Mileage cap
The maximum number of kilometers (or miles) included in the rental price — additional distance is billed at a per-km rate stated upfront.
A mileage cap (or mileage allowance) is the distance the customer can drive within the base rental price. Anything beyond the cap is charged as overage at a per-km rate set when the booking is created. The cap may be 'per day' (e.g. 200 km/day, multiplied by the rental's day count) or 'total for the rental' (e.g. 1,500 km for a 7-day booking). Some operators offer an 'unlimited' product as an upsell.
Mileage caps exist because higher distance correlates strongly with wear: a car driven 5,000 km in a week needs servicing sooner than one driven 500. Caps shift the variable cost back to the customer who actually generates it, and let the headline daily rate stay competitive. The per-km overage rate is usually small (€0.15–€0.40/km) but adds up quickly on long-distance use.
Mileage tracking is captured at pickup and return through the inspection workflow — odometer photo, recorded reading, optional staff sign-off. In renviq the cap and per-km rate live on the rental agreement, the inspection saves before-and-after readings, and the closeout flow computes any overage automatically as a line item on the final invoice with no manual math.