Separate the vehicle from the business model
An automotive case might concern a manufacturer deciding which models to produce, a supplier funding a new production line, a fleet operator choosing vehicles or a charging company evaluating locations. These businesses participate in the same ecosystem but earn money in different ways.
Quick Prep’s automotive and mobility primer helps you establish that distinction early. Your first task is to identify the customer, the unit of sale and the assets required to serve demand. Only then can you decide whether the problem is best analysed per vehicle, per component, per kilometre, per trip or per charging session.
The IEA’s Global EV Outlook examines adoption alongside affordability, charging, batteries and trade. Its regional differences are especially useful for interview preparation: a global electrification trend does not establish the business case for a particular fleet or location. IEA: Global EV Outlook 2026
Understand the major participants
Vehicle manufacturers combine product development, sourcing, production, distribution and brand management. Profitability depends on realised selling prices, model mix, manufacturing economics, incentives and warranty costs. Ask whether prices are retail prices or the manufacturer’s net revenue.
Component suppliers sell into programmes with qualification requirements and production schedules. Capacity commitments, customer concentration, engineering costs and contract terms can dominate the decision.
Dealers and aftersales businesses may earn money through vehicle sales, service, parts and related products. Model each revenue stream separately before drawing conclusions from vehicle sales volume alone.
Fleet and mobility operators earn revenue from productive use of assets. A busy vehicle may still be unprofitable if repositioning, maintenance, insurance or driver costs are high. Platform businesses require a further distinction between the total value of rides and the revenue retained by the platform.
Charging operators depend on location demand, energy economics, equipment reliability and utilisation. Installed charging capacity is not the same as sold electricity.
Choose metrics that fit the question
| Metric | Application | Common mistake |
|---|---|---|
| Contribution per vehicle | Pricing and model-mix decisions | Ignoring discounts, warranty or delivery costs |
| Plant utilisation | Manufacturing capacity decisions | Assuming every line can produce every model |
| Total cost of ownership | Fleet purchase comparisons | Comparing sticker prices alone |
| Paid kilometres / total kilometres | Fleet productivity | Counting empty journeys as productive use |
| Platform take rate | Share of transaction value retained | Treating gross bookings as platform revenue |
| Charging utilisation | Use relative to available capacity or time | Mixing energy-based and time-based definitions |
Total cost of ownership should specify the holding period, annual distance, acquisition cost, energy, maintenance, insurance, infrastructure and disposal value. Financing and tax assumptions should be consistent across alternatives. For an interview, explain the model’s boundaries before calculating.
Worked exercise: should a delivery fleet electrify?
Illustrative interview exercise. The figures are fictional, exclude tax and financing, and use a common currency.
A delivery company is comparing an electric van with a diesel van over five years. The electric van costs 12,000 more, and allocated charging installation adds 3,000 per vehicle. Assume equal disposal values and no difference in insurance or maintenance.
Each van travels 30,000 kilometres annually. Diesel consumption is 8 litres per 100 kilometres, at 1.60 per litre. Annual fuel cost is:
30,000 ÷ 100 × 8 × 1.60 = 3,840.
Electricity use, measured at the charger and including charging losses, is 24 kWh per 100 kilometres. At 0.20 per kWh, annual energy cost is:
30,000 ÷ 100 × 24 × 0.20 = 1,440.
Annual energy savings are 2,400. Over five years, undiscounted savings total 12,000, below the 15,000 upfront premium. Energy savings alone therefore do not justify the purchase under these assumptions.
The break-even annual distance is 15,000 ÷ 5 ÷ 0.08 = 37,500 kilometres, where 0.08 is the energy saving per kilometre. That does not settle the decision. Test maintenance, resale value, charging demand charges, route reliability and vehicle availability. A fleet with short predictable routes and depot charging may have a different answer from one with irregular long-distance journeys.
Develop a commercial recommendation
For a charging network, start with reachable drivers, charging needs and competing locations. Translate those into sessions, energy sold and net revenue. Then check grid connection timing, parking access and equipment uptime. A site that is attractive on a map may be difficult to build or operate.
For a manufacturer, connect the proposed model strategy to customer willingness to pay and production flexibility. A premium model can improve average revenue while reducing unit volume; the net effect depends on contribution and capacity.
For a mobility platform, ask how incentives affect rider demand and driver supply. Promotions can increase transactions while reducing contribution, and removing them can change both sides of the market.
Practise the trade-off, then the explanation
Try three variations of the fleet exercise: double annual distance, increase electricity cost, and reduce the holding period. Identify which assumption changes the recommendation first. Explain the operational conditions required for the financial case to hold.
Prepare to distinguish technology adoption from commercial returns. The useful interview skill is showing when an innovation creates value for this client, in this geography, under these constraints. Continue with Finance Modeling for investment comparisons or Market Analysis for adoption and entry cases.
