The 2021 Mazda BT-50 and Isuzu D-Max are twins under the skin, made on the same production line and – presumably – cost the same to build.

But as we discovered, manufacturing cost has little to do with how car companies set prices – and there are numerous examples that defy logic.

For example, on these ute twins Mazda charges a $2500 premium for automatic transmission versus a manual; Isuzu charges $2000.

Except on the top-of-the-range flagship Mazda BT-50 XTR, which has a $3000 premium for automatic transmission; Isuzu doesn’t offer a manual on its most expensive model grade.

In most cases, the Mazda BT-50 has slightly more standard equipment than the closest equivalent Isuzu D-Max variant, although the price changes ebb and flow, depending on the model.

The good news: both the Isuzu D-Max and Mazda BT-50 come with the full suite of advanced safety tech.

Below is a summary of some key models (all automatic transmission with MSRP pricing shown before options and on-road costs).

Isuzu D-Max model & price Mazda BT-50 model & price Gap to best value
SX 4x2 CC $40,700 XT 4x2 CC $44,090 $3390 to Isuzu
LS-U 4x2 pickup $48,900 XTR 4x2 pickup $49,470 $570 to Isuzu
LS-M 4x4 pickup $53,000 XT 4x4 pickup $53,260 $260 to Isuzu
X-Terrain 4x4 pickup $62,900 GT 4x4 pickup $59,900 $3000 to Mazda

Due to coincidence or good planning, the Isuzu and Mazda ute model ranges don’t line up exactly.

Isuzu has more choices in the workhorse range and therefore a lower starting price; Mazda does not offer a double-cab variant with steel wheels, a vinyl floor, or halogen headlights.

All models in the Mazda BT-50 range come with carpet flooring, LED headlights and alloy wheels – including a matching alloy spare.

By comparison, Isuzu has slung a full-size steel wheel under the rear of each model, presumably as a cost-saving measure in the hope customers won’t get down on their hands and knees in the showroom and check.

You can be sure Mazda dealers will be pointing out these anomalies.

Mazda also snuck a few extra features into its middle- and top-grade models that Isuzu either didn’t know about or didn't care to add.

For example, a sensor key with pus button start is standard on the top two model grades of the Mazda BT-50, but only on the single most expensive Isuzu D-Max X-Terrain.

Mazda has also fitted rear parking sensors to every double-cab BT-50 with a factory ute tub; Isuzu only has rear sensors on the top two model grades of ute body.

Mazda has heated leather seats and heated side mirrors on its flagship GT; these are not available on the Isuzu D-Max.

However, Isuzu has a factory-fitted roller shutter hard lid; on the Mazda BT-50 this is a dealer-fit accessory.

The prices listed below are the RRP before on-road costs are added.

The exception to the prices listed is the Isuzu D-Max X-Terrain, which is currently available for a special launch offer of $58,990 drive-away. At this price is it cheaper than the Mazda, but at the RRP the Isuzu is $2910 dearer.

While these RRPs will likely hold until the initial hype subsides, these numbers may be academic if you’re a good negotiator.

If you’re deciding which one to buy, consider the subtle equipment differences, the unique design (the bodies are completely different from each other, although the underpinnings are identical), and which dealer is closest to you for servicing.

As for capability, the engine, transmission, steering and suspension in both utes are identical. Although Mazda trades on its “zoom zoom” image, Mazda did not lay a spanner on the suspension and no local tuning was done. Regardless of what anyone tells you, these utes should drive exactly the same.

One final difference: the Mazda BT-50 has a five-year/unlimited-kilometre warranty versus six-year/150,000km coverage on the Isuzu D-Max. The service intervals of 12 months/15,000km are the same on both vehicles.

Full model data listed below.

Note that all variants are noted as a double-cab with automatic transmission.A manual transmission is offered in models noted with an asterisk* where the price saving is between $2000 and $2500 depending on make and model.

Model Model grade Tray type Drivetrain RRP Equipment differences
D-Max SX Chassis 4x2 $40,700 Tradie model. Vinyl floor, steel wheels, halogen headlights. Equivalent model not available as a BT-50.
D-Max SX Ute 4x2 $41,900 Tradie model. Vinyl floor, steel wheels, halogen headlights. Equivalent model not available as a BT-50.
BT-50 XT Chassis 4x2 $44,090 Entry-grade model. Carpet floor, alloy wheels, LED headlights. Equivalent model not available as an D-Max.
BT-50 XT Ute 4x2 $45,490 Entry-grade model. Carpet floor, alloy wheels, LED headlights, rear sensors. Equivalent model not available as an D-Max.
D-Max LS-U Ute 4x2 $48,900 Mid-grade model RRP is $570 less than BT-50 and lacks sensor key, push button start, rear sensors, matching alloy spare.
BT-50 XTR Ute 4x2 $49,470 Mid-grade model RRP is $570 more than D-Max and gains sensor key, push button start, rear sensors, matching alloy spare.
D-Max SX Chassis 4x4* $48,700 Tradie model. Vinyl floor, steel wheels, halogen headlights. Equivalent model not available as a BT-50.
BT-50 XT Chassis 4x4* $51,860 Entry-grade model. Carpet floor, alloy wheels, LED headlights, matching alloy spare. Equivalent model not available as an D-Max.
D-Max LS-M Ute 4x4* $53,000 Entry-grade model RRP is $260 less than BT-50 and lacks sensor key, push button start, rear sensors, matching alloy spare.
BT-50 XT Ute 4x4* $53,260 Entry-grade model RRP is $260 more than D-Max and gains sensor key, push button start, rear sensors, matching alloy spare.
D-Max LS-U Ute 4x4* $56,900 Mid-grade model RRP is $310 less than BT-50 and lacks sensor key, push button start, rear sensors, matching alloy spare.
BT-50 XTR Ute 4x4* $57,210 Mid-grade model RRP is $310 more than D-Max and gains sensor key, push button start, rear sensors, matching alloy spare.
D-Max X-Terrain Ute 4x4 $62,900

Flagship model RRP is $3000 more than BT-50. Has black leather seats. Lacks heated leather seats, heated side mirrors, matching alloy spare. Gains roller shutter hard lid and body kit.

BT-50 GT Ute 4x4* $59,990

Flagship model RRP is $3000 less than D-Max. Gains heated brown leather seats, heated side mirrors, matching alloy spare. Lacks roller shutter hard lid and body kit.

Prices are RRP and exclude on-road costs such as registration and stamp duty.

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