BYD Sealion 5 vs MG MG3

What's the difference?

VS
BYD Sealion 5
BYD Sealion 5

$33,990 - $37,990

2026 price

MG MG3
MG MG3

$12,888 - $30,490

2024 price

Summary

2026 BYD Sealion 5
2024 MG MG3
Safety Rating

Engine Type
Inline 4, 1.5L

Inline 4, 1.5L
Fuel Type
Premium Unleaded/Electric

Unleaded Petrol
Fuel Efficiency
4.5L/100km (combined)

6.0L/100km (combined)
Seating
5

5
Dislikes
  • Steering column needs more adjustment
  • Flat rear seat cushion
  • Engine can be noisy when stretched

  • Underwhelming drivetrain
  • Noisy on the open road
  • Price jump means now less tempting
2026 BYD Sealion 5 Summary

Following the money comes pretty naturally to carmakers. It’s what happens when the product planning department smells a new direction on the breeze and then handballs that to the design and engineering folks who turn a perceived market trend into a showroom reality. And when everybody gets it right, you have a new default product. And everybody else has to keep up. Some even have to catch up.

We’ve seen it plenty of times before, too. Think about those early 1980s days when the default small car went from a sedan to the five-door hatchback. Didn’t that catch on? You might also remember more recently when a family car had to be a four-wheel drive. And what about the dual-cab ute revolution of the last 15 years?

The other strident market segment right now is the SUV, of course. And within that, most recently has been the march to electrification, starting with conventional hybrid technology and now progressing to the new must-have, a plug-in hybrid platform.

The fact is, if you’re a Chinese carmaker intending to sell on a world stage, you can’t ignore the plug-in SUV in any of its various sizes and marketing segments. There’s a good basis for this, too. Plug-in hybrids just make good sense. They offer the urban running-cost advantages of any hybrid, the option of zero tailpipe emissions, all-electric running over a normal commuting distance and – crucial for a big country like this one – they’ll keep motoring along for as long as the owner puts petrol in them.

Okay, so they can be heavy with all that tech on board, and there’s no denying that two power sources (petrol and electric) make for a more complex machine, but the advantages outweigh the downsides for many buyers.

The other graph you can plot with great certainty is that new tech will get cheaper as the industry moves forward. Which is exactly where BYD finds itself right now by being able to offer a plug-in hybrid variant of its Sealion 5 mid-sized SUV at a price that will have much of the opposition running scared. But how scared should the others be?

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2024 MG MG3 Summary

A number of established small cars are becoming more expensive and less popular. The Toyota Yaris, Mazda2 and Suzuki Swift were once the go-to first car, but now start at around $25,000.

This repositioning was great for MG and its sub-$20,000 MG3, which has spent much of the last few years as Australia's most popular light car. It’s hard to deny a low price will open many wallets.

But now in its new generation, the MG3 is thousands of dollars more expensive than before, starting in the mid-$20K range and headed even further up with a new hybrid drivetrain option. We jump in the base petrol Excite to find out if the value is still there for this British-branded, Chinese-built hatchback.

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Deep dive comparison

2026 BYD Sealion 5 2024 MG MG3

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