Key Takeaways
- 535kW / 900Nm 4.0-litre twin-turbo V8, 0 to 100km/h in 3.3 seconds
- Comfort-tuned DBX: revised dampers, memory-foam seats, individual rear seats, quieter cabin
- Standard 22-inch forged wheels on all-season tyres; 23-inch optional
- WLTP combined 14.3L/100km, 319g/km CO2
- First deliveries from Q4 2026; no published Australian price
- ANCAP: no data
Image credit: Aston Martin
Aston Martin has built a DBX for people who want the big numbers but not the theatre. The DBX GT keeps the 4.0-litre twin-turbo V8 from the DBX S, rated at 535kW and 900Nm on Aston Martin Australia's own page, and spends its effort on making the thing calmer to live with: softer seats, a quieter cabin and a less shouty face.
The Numbers
| Petrol, 4.0-litre twin-turbo V8, AWD | DBX GT |
|---|---|
| Price | Not published by Aston Martin |
| Power | 535kW (727PS) at 6,250rpm |
| Torque | 900Nm, 3,000 to 5,250rpm |
| 0 to 100km/h | 3.3 seconds |
| Top speed | 310km/h |
| Transmission | 9-speed wet-clutch automatic |
| Fuel (WLTP combined) | 14.3L/100km, 319g/km CO2 |
| Wheels | 22-inch forged standard, 23-inch optional |
| Length / width | 5,039mm / 1,998mm |
What the GT Changes
The front gets a new double-vaned grille, the lower bumper, sills and diffuser are body coloured, and the quad exhausts sit side by side. Inside, Aston Martin has redesigned the front and rear seats with a 10mm memory-foam layer and reshaped bolsters, and the rear can be specified as two individual seats. Extra sound deadening in the doors, wheel arches and load space, plus acoustic laminated rear side glass, add up to what Aston Martin says is a 13 per cent better "Articulation Index", the industry's measure of how easy it is to hold a conversation on the move.
Under it all, the dampers get new internal valves aimed at the fine, buzzy stuff like coarse chip seal and rumble strips, the standard 22-inch wheels wear all-season tyres for less road noise, and the exhaust gets its own quieter GT-mode tune. It keeps the DBX S's carbon ceramic brakes (420mm front, 390mm rear) and faster steering ratio.
Our Take
This is a sensible idea in a not very sensible class. The DBX 707 in our directory makes 520kW, so the GT is the more powerful car on paper while being pitched as the comfortable one. For anyone who actually drives one of these every day, on Australian roads with Australian chip seal, a damper valve tuned for coarse surfaces and a cabin you can talk in may matter more than another tenth to 100km/h.
Aston Martin doesn't publish Australian prices, so we don't print one. Aston Martin says first deliveries start in the fourth quarter of 2026 but hasn't given an Australian date. ANCAP: no data.
Related reading: every Aston Martin in our directory
Disclaimer: Specifications are from Aston Martin Australia's DBX GT page as read on 8 October 2026. Equipment and refinement details and the delivery timing are from Aston Martin's media release of 1 October 2026. Fuel figures are from official laboratory testing and are for comparison only. Aston Martin does not publish Australian pricing for the DBX GT. The DBX 707 power figure is the value held in our directory.