BYD Atto 3 vs MG S5 EV

Updated October 2026 · Real-world figures, not WLTP

BYD Atto 3

ATTO 3 Evo RWD Design (MY26)

£38,990 · 252 mi

Wins 11 of 14

MG S5 EV

MGS5 EV 49 kWh

£28,745 · 171 mi

Wins 3 of 14

Our verdict

The BYD Atto 3 and MG S5 EV are both electric SUVs in the medium car class. The BYD Atto 3 starts at £38,990 in the UK and the MG S5 EV at £28,745, comparing the cheapest version of each.

The Atto 3 goes further, with about 252 miles of real-world range against 171 for the S5 EV. On top of that, it charges faster on a rapid charger (130 kW against 80 kW on average, 10–80%), has the bigger boot (591 litres against 453) and is quicker, doing 0–62 mph in 5.5 s against 8.0 s.

The S5 EV is £10,245 cheaper to buy new (£28,745 against £38,990). On top of that, it uses less energy (3.6 mi/kWh against 3.4 mi/kWh) and has the longer warranty (7 years against 6).

Choose the BYD Atto 3 if you want the longest range and quicker charging stops and the MG S5 EV if you want the lower price and lower running costs.

Written from the figures below, comparing the cheapest UK version of each. Other versions can differ: open them in Compare to swap versions.

BYD Atto 3MG S5 EV

Price

Price new: £38,990on sale now; £28,745 (best)on sale now
Used from (estimated): –too new; £16,4002025 car
Price per mile of range: £155 (best); £168

Range and efficiency

Real-world range: 252 mi (best)405 km; 171 mi275 km, estimate
Range today, used (estimated): –; about 168 mi2025 car, est.
Efficiency: 3.4 mi/kWh185 Wh/km; 3.6 mi/kWh (best)171 Wh/km, estimate
Range with one 15-min stop: 283 mi (best)455 km; 192 mi309 km

Charging

Rapid charging: 130 kW (best)10–80% average; 80 kW10–80% average
Home (AC) charging: 11 kW; 11 kW
Charging plug: Type 2 CCS; Type 2 CCS
Vehicle-to-load (V2L): Yes; Yes
Vehicle-to-home (V2H): No; No
Vehicle-to-grid (V2G): No; No

Battery

Usable battery: 74.8 kWh (best); 47.1 kWh
Battery chemistry: LFP (lithium iron phosphate); LFP (lithium iron phosphate)
Heat pump: Yes (best); No

Body and performance

Body style: SUV; SUV
Size class: C · Medium car; C · Medium car
Seats: 5; 5
Drive: Rear-wheel drive; Rear-wheel drive
0–62 mph: 5.5 s (best)0–100 km/h; 8.0 s0–100 km/h
Weight: 1,955 kg; 1,710 kg

Size

Length: 4.46 m14 ft 7 in; 4.48 m14 ft 8 in
Width (without mirrors): 1.88 m6 ft 2 in; 1.85 m6 ft 1 in
Width with mirrors: 2.08 m6 ft 10 in; 2.09 m6 ft 10 in
Height: 1.62 m5 ft 4 in; 1.62 m5 ft 4 in
Wheelbase: 2.72 m8 ft 11 in; 2.73 m8 ft 11 in

Practicality and safety

Boot space: 591 litres (best); 453 litres
Towbar available: Yes; Yes
Towing (braked): 1,500 kg (best); 750 kg
Max payload: 530 kg (best)people and luggage; 445 kgpeople and luggage
Euro NCAP rating: –not tested yet; 5 stars

Warranty (UK)

Car warranty: 6 years93,750 miles; 7 years (best)80,000 miles
Battery warranty: 8 years (best)125,000 miles; 7 years80,000 miles, 70% capacity
Passes to next owner: Yes, with conditions; Yes

Availability

Status: On sale new; On sale new
Model years: 2026 on; 2025 on

Green marks the better figure in each row. Range is a real-world estimate, not WLTP. Used prices are estimates. Warranty terms are UK terms from each maker’s website.