The verdict in three sentences
In a dealership group, the manufacturer DMS is mandatory: you do not replace it, you extend it. The real opportunity is in used vehicles, where every day in stock costs 40 to 65 CAD in depreciation, floorplan interest and lot space. A custom layer at 45,000 to 90,000 CAD, connected to the DMS, manages trade-ins, reconditioning costs and service bay scheduling to bring turnover under 45 days.
The hidden cost of a used car that sits
A used vehicle taken in trade at 21,000 CAD loses value every week. Add floorplan interest, insurance, lot space and lost sales time. The problem concentrates in three moments: trade-in appraisal, often too optimistic, reconditioning waiting for a service slot, and listings that go online late.
| Used vehicle stage | Observed time (2026 estimate) | Target | Cost of one day of delay |
|---|---|---|---|
| Trade-in and inspection | 1 to 3 days | Under 1 day | 40 to 65 CAD |
| Waiting for reconditioning slot | 7 to 15 days | 3 to 5 days | 40 to 65 CAD |
| Mechanical and body reconditioning | 3 to 8 days | 2 to 4 days | 40 to 65 CAD |
| Photos and online listing | 2 to 6 days | Under 2 days | 40 to 65 CAD |
| Sale and delivery | 30 to 50 days | 25 to 35 days | 40 to 65 CAD |
| Total turnover | 55 to 75 days | Under 45 days |
Trade-in appraisal deserves special attention. A tool that combines market value, your own sales history and average reconditioning costs per model avoids trade-ins overpaid by 1,200 to 2,200 CAD, which end up as negative gross.
DMS alone or a custom layer
| Function | Manufacturer DMS | Kolonell custom layer |
|---|---|---|
| Service and parts invoicing | Complete | Read from the DMS |
| Trade-in appraisal | Basic | Market value + internal history + estimated costs |
| Reconditioning cost tracking per unit | Often scattered | Budget, actual, variance per vehicle |
| Stock age and alerts | Monthly report | Daily dashboard, alerts at 30 and 45 days |
| Service bay scheduling for used and customer work | Partial | Capacity per technician, used vehicle priority |
| Group view across 3 sites | Variable | Consolidated, inter-site transfers |
| Cost | Included in the OEM contract | 45,000 to 90,000 CAD + 6,000 to 12,000 CAD per year |
The layer does not duplicate the DMS. It reads repair orders, inventory and sales through available exports or APIs, then adds what is missing: a per-vehicle view and service bay prioritisation. With 14 technicians, reserving 25% of capacity for incoming used vehicles often halves reconditioning wait time.
Project budget and timeline
| Phase | Scope | Indicative 2026 budget | Timeline |
|---|---|---|---|
| DMS connection | Read inventory, repair orders, sales | 9,000 to 18,000 CAD | 3 to 5 weeks |
| Trade-ins | Mobile inspection form, photos, appraisal | 10,500 to 19,500 CAD | 4 to 5 weeks |
| Reconditioning | Cost budget, approval, actual tracking | 9,000 to 18,000 CAD | 3 to 4 weeks |
| Service bay scheduling | Technician capacity, priorities, slots | 9,000 to 19,500 CAD | 4 to 5 weeks |
| Inventory control | Age, projected gross, alerts, group view | 7,500 to 15,000 CAD | 3 to 4 weeks |
The DMS connection is the most uncertain phase: depending on the manufacturer and vendor, access goes through an API, a scheduled export or a file drop. We scope it first, in a 1 to 2 week audit, before locking the overall budget.
Mini case study
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Ryan runs a group of 3 dealerships in Toronto selling 1,900 used vehicles a year with an average turnover of 58 days. He uses a cautious holding cost of 45 CAD per day per vehicle. If the layer saves just 6 days of turnover, the saving is 1,900 × 6 × 45 = 513,000 CAD a year. The project, costed at 78,000 CAD plus 9,000 CAD of annual maintenance, pays back in under two months of gains. Reaching the 45-day target, 13 days saved, the theoretical gain exceeds 1,110,000 CAD a year.
FAQ
Can we replace the DMS required by the manufacturer?
No, the DMS remains mandatory for invoicing, warranty and exchanges with the brand. The custom layer connects to it and costs 45,000 to 90,000 CAD depending on scope.
What does one day in stock cost for a used vehicle?
A 2026 working estimate is 40 to 65 CAD per day, covering depreciation, floorplan interest, insurance and lot space. Across 300 units in stock, that is 12,000 to 19,500 CAD per day.
How does the tool improve trade-in appraisal?
It combines market value, your last 12 months of sales on the same model and average reconditioning costs. The goal is to avoid trade-ins overpaid by 1,200 to 2,200 CAD.
Does the service bay schedule also handle customer work?
Yes, it shows each technician's capacity and reserves a share, for example 25%, for incoming used vehicles. Customer appointments keep priority outside reserved slots.
How long until go-live?
Plan 3 to 5 months, starting with the DMS connection audit. The used inventory dashboard is often the first deliverable, from week six.
Let's scope your project. Tell us your DMS, your used vehicle volume and number of rooftops: we will cost a layer between 45,000 and 90,000 CAD with a 3 to 5 month plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
