New vs Used Car Finance: Which Is the Better Deal in South Africa?

Buying new feels safer, but the depreciation hit in the first three years is the single biggest cost of car ownership. This guide compares new vs used finance, insurance, maintenance, and depreciation — and shows when each makes sense.

The Depreciation Reality

The single biggest cost of car ownership is depreciation — the loss in your car's value over time. And the biggest depreciation hit happens in the first three years. A new R500,000 car loses about R100,000 in value the moment you drive it off the dealer's floor, and another R50,000-R75,000 in years 2 and 3. By the end of year 3, that R500,000 car is worth about R300,000 — a R200,000 loss, or R5,500/month in depreciation alone. That's before you've paid a cent in finance, fuel, insurance, or maintenance.

A 3-year-old version of the same car, bought for R300,000, has already taken that R200,000 hit — the previous owner paid for it. Your depreciation over the next 3 years is much smaller, because the steepest part of the curve is behind you. The car might lose another R75,000 over years 4-6, or R2,100/month — less than half the new-car depreciation rate. This is the core argument for buying used: you skip the most expensive years of ownership.

Use our Total Cost of Ownership Calculator to model both scenarios. Enter the new car price and a 3-year-old equivalent, and compare the total cost over your ownership period. In most cases, the used car wins by R100,000-R200,000 over a 6-year ownership period — and that's money in your pocket, not the dealer's.

Finance: New vs Used Rates

Banks typically offer slightly better interest rates on new cars than used cars — usually 0.5% to 1.5% better. This is because new cars are worth more as security (the bank can repossess and sell a new car for closer to the loan amount), and because manufacturers often subsidise the finance rate as a sales incentive. A new car at prime + 1% vs a used car at prime + 2.5% is a R1.5% difference — on a R400,000 loan over 72 months, that's about R18,000 more interest on the used car.

But the used car's lower purchase price more than offsets the higher rate. A R300,000 used car at prime + 2.5% over 72 months costs about R6,000/month and R132,000 in interest. A R500,000 new car at prime + 1% over 72 months costs about R8,400/month and R205,000 in interest. The new car costs R73,000 more in interest AND R2,400/month more in instalment — even with the better rate. The rate advantage doesn't overcome the price disadvantage.

There's one exception: manufacturer-subsidised finance rates. Sometimes a manufacturer offers 2.9% or 3.9% finance on a new car as a promotion — far below prime. In that specific case, the new car can be cheaper to finance than a used car at market rates. Always check for manufacturer specials before assuming used is cheaper. But these specials are rare and usually on specific models, not across the range.

Insurance: New vs Used

Insurance on a new car is more expensive than on a used car, for two reasons. First, the car is worth more, so the insurer's payout in the event of a write-off is higher. Second, new cars often have expensive features (LED headlights, sensors, cameras) that cost more to repair. A R500,000 new car might cost R1,500-R2,000/month to insure; a R300,000 3-year-old version of the same car might cost R1,000-R1,400/month. The difference is R500-R600/month — R3,600-R4,300/year, or R21,000-R26,000 over 6 years.

There's a nuance: if you finance the car, the bank requires comprehensive insurance, and you may be pressured to take the bank's insurer (often at a premium). You have the right to use any registered insurer — shop around. Also, consider gap cover for a new car: if the car is written off in the first year, the insurance payout (market value) may be less than the finance balance, leaving you underwater. Gap cover costs R200-R400/month and is usually worth it on a new financed car. See our Trade-In Equity Calculator to understand this risk.

Maintenance: New vs Used

New cars come with a manufacturer warranty (typically 4-5 years or 100,000-120,000km) and a service plan (typically 3-5 years or 60,000-90,000km). During the warranty and service plan period, your maintenance costs are minimal — just fuel and consumables (wiper blades, brake pads outside the service plan). This is a real financial benefit: R0 in unexpected repairs for 4-5 years.

A 3-year-old used car may have 1-2 years of warranty remaining (if transferable) but the service plan has usually expired. You're responsible for services (R1,500-R4,000 each, every 15,000km) and any repairs. As the car ages past 5 years / 100,000km, major components start to need attention: tyres (R4,000-R8,000 per set), brake discs and pads, clutch, suspension. Budget R600-R1,200/month for maintenance on a 3-6 year old car, vs R200-R400/month on a new car under warranty.

Over a 6-year ownership period, the maintenance difference is real but not huge — maybe R25,000-R40,000 more on the used car. It partially offsets the depreciation saving, but doesn't eliminate it. And a well-maintained used car (with full service history) is much less risky than a poorly-maintained one. Always check the service history before buying used.

The Verdict: When New Wins, When Used Wins

Used wins in most scenarios. The depreciation saving (R100,000-R200,000 over 6 years) dwarfs the higher finance rate (R15,000-R20,000), higher insurance (R20,000-R25,000), and higher maintenance (R25,000-R40,000). The total cost of ownership is typically R50,000-R150,000 lower on a 3-year-old used car vs a new car, over the same ownership period. Use our Total Cost of Ownership Calculator to verify this for your specific vehicles.

New wins in a few specific scenarios: (1) manufacturer-subsidised finance rates below 5%; (2) you plan to keep the car for 10+ years (the depreciation curve flattens, so the initial hit matters less); (3) you value the warranty and peace of mind highly and are willing to pay for it; (4) it's a business vehicle and the tax treatment of a new car is more favourable (consult a tax practitioner). In all other cases, a 2-4 year old used car is the financially smarter choice.

The worst choice is a new car that you trade in after 3 years — you take the full depreciation hit and then start again. If you're going to buy new, keep the car for at least 7-8 years to spread the depreciation over a longer period. If you're going to trade in every 3-4 years, buy used and let someone else take the hit.