Describe how the customer will replenish the car
Ask about home or workplace charging access, public-station use and the frequency of longer journeys. These patterns affect the energy purchases the operator should budget for. A customer plugging in regularly may have a different mix from one using the range extender more often, even when the vehicles and monthly distance are similar.
The range-extender and battery guide identifies the complete system. Do not describe every kilometre as electricity-only or assume that the range extender removes the need for charging planning. Establish the actual vehicle configuration and ordinary routine before assigning a cost figure to the customer’s use.
Keep the accounting period consistent
Collect the fuel and purchased-electricity records associated with the same distance interval. A petrol receipt from one week and a charging summary from another do not establish a meaningful combined amount. Retain relevant dates and explain the method used to connect purchases and vehicle operation.
If stored energy or fuel levels change materially across the period, have the estimate’s limitations explained rather than presenting purchases as an exact measure of consumption. For an initial budget, clearly labelled assumptions may be more appropriate. The important point is that the calculation should not appear more precise than the underlying records justify.
Use tariffs that describe the actual purchase
Separate home charging from public charging where the prices differ. Keep any applicable fixed, session or parking charges visible instead of assuming the displayed energy rate covers the entire visit. Ask the relevant provider for current terms; a general online rate from another location is not a confirmed customer tariff.
The charging-session guide explains how energy and elapsed time relate to the recorded visit. Keep the measurement source clear. A battery-capacity label alone does not tell the buyer how much electricity will be purchased during a particular session or the amount that will appear on the bill.
Calculate a complete energy example
For illustration only, assume a period uses purchases of 50 litres of petrol at 1.30 currency units per litre and 280 kWh at 0.25 per kWh. The subtotals are 65 and 70, giving 135 currency units. These invented amounts are not ROX 01 test results or current local prices.
If that illustrative period covers 1,500 kilometres, the purchase-based energy amount is 9 currency units per 100 kilometres. State the accounting limits and replace the assumptions with suitable records before using the result for a real customer. Exclude maintenance, insurance and acquisition costs from this energy-only subtotal rather than pretending it is complete ownership cost.
Check how a changed routine affects the budget
Show separate scenarios if the customer’s charging access or route varies meaningfully. A month with more public charging may change the price mix, while longer journeys may change the fuel-and-electricity balance. Do not apply an invented universal ratio between the two energy sources across every version and driving pattern.
Avoid promising a fixed annual saving against an unrelated vehicle without equivalent inputs. The comparison needs the same distance, relevant conditions and clear measurement. A transparent scenario can be revised after delivery; an unqualified lowest-running-cost claim remains misleading when the customer’s actual route differs from the assumed one.
Keep maintenance and preparation on their own lines
The range-extender maintenance guide considers service obligations separately from energy spending. Frequent charging does not establish that engine-related maintenance can be ignored. Identify current due work and diagnosed repairs using the applicable guidance and actual records rather than hiding them in a general fuel-saving narrative.
For candidate comparisons, count agreed preparation once and show any uncertain amounts as provisional. A cheaper vehicle with unresolved work is not equivalent to an inspected ready offer simply because both share the same energy assumptions. Do not add speculative resale gains or future tariff predictions to make a preferred car look financially superior.
Give the receiving dealer an updateable worksheet
Send Panda the expected distance, charging access, route mix, destination and new or used preference. State whether measured operating evidence is required or whether an initial scenario is sufficient. Keep the accepted battery version and relevant equipment connected to the budget rather than applying one generic figure to the whole model family.
Retain the price assumptions, units and evidence period with the final proposal. Update them with representative local records after the customer begins using the vehicle. The goal is a calculation the operator can understand and revise, without fuel-only claims concealing charging or electricity-only claims concealing petrol used during the same journeys.
BRING TO YOUR ENQUIRY
Three useful starting points.
- Distance and both energy inputs for one period
- Tariffs, currency and measurement assumptions
- Separate acquisition, preparation and service amounts