BYD vs Tesla Safety Ratings: Euro NCAP and ANCAP Scores Compared

Every BYD and Tesla model tested has earned a five-star rating from both Euro NCAP and ANCAP, so neither brand is unsafe. Tesla leads on active safety, with the Model Y scoring 92 percent for Safety Assist against 74 to 79 percent for BYD models. BYD leads on child occupant protection, where the Sealion 7's 93 percent equals the highest score recorded in nearly a decade. Tesla holds a modest edge overall, driven by its driver-assistance systems rather than crash structure.

Every Score Side by Side

Measurement	Adult	Child	Pedestrian	Safety Assist
BYD Seal (ANCAP)	89%	87%	82%	75%
BYD Atto 3 (ANCAP)	91%	84%	69%	80%
BYD Atto 3 (Euro NCAP)	91%	89%	69%	74%
BYD Sealion 7 (Euro NCAP)	87%	93%	76%	79%
Tesla Model 3 (Euro NCAP)	90%	93%	89%	87%
Tesla Model Y (Euro NCAP)	91%	93%	86%	92%

How Euro NCAP and ANCAP Rate Electric Cars

Both programmes score cars across four categories: adult occupant protection, child occupant protection, vulnerable road user protection, and safety assist. Each is expressed as a percentage, and a car needs strong results in all four to earn five stars.

Two things matter when reading these numbers. First, protocols tighten every few years, so a score from an older test is not directly comparable to a recent one. Second, ANCAP and Euro NCAP sometimes publish different figures for the same car, because the vehicles and test batches differ.

The Atto 3 shows this clearly. Euro NCAP awarded it 89 percent for child occupants and 74 percent for safety assist, while ANCAP gave the same model 84 percent and 80 percent respectively. Neither is wrong. They are different tests. Full reports for both are published by ANCAP and Euro NCAP.

BYD Seal Safety Rating Breakdown

The Seal earned five stars from both programmes. ANCAP recorded 89 percent adult, 87 percent child, 82 percent pedestrian, and 75 percent safety assist.

Testers gave it full marks for protecting the driver in the oblique pole test, and maximum points for child passengers in the side impact. Its cell-to-body construction contributes torsional rigidity of around 40,500 Nm per degree, which is supercar territory and shows in the frontal offset result.

Tesla Model 3 Safety Rating Breakdown

The current Model 3 scored 90 percent adult, 93 percent child, 89 percent pedestrian, and 87 percent safety assist under Euro NCAP's latest protocol. It was named Best in Class for large family cars.

Its standout feature is the active hood, which lifts during a collision to reduce injury to pedestrians, plus an upgraded emergency braking algorithm that now detects motorcycles.

BYD Atto 3 vs Tesla Model Y Safety

Both are five-star cars, and both score 91 percent for adult occupant protection. The gap opens elsewhere.

• Safety assist: Model Y 92 percent, Atto 3 80 percent under ANCAP
• Pedestrian protection: Model Y 86 percent, Atto 3 69 percent
• Child occupant: Model Y 93 percent, Atto 3 84 percent under ANCAP

The Model Y recorded the highest overall weighted safety score of any vehicle ANCAP assessed in its most recent testing cycle. The Atto 3's crash structure holds up, but its pedestrian and assistance scores reflect an older test protocol and a less sophisticated driver-assistance suite.

BYD Sealion 7 Safety Score

The Sealion 7 is BYD's strongest recent result: 87 percent adult, 93 percent child, 76 percent pedestrian, and 79 percent safety assist.

That 93 percent child score equals the highest in the category over the past nine years. Euro NCAP did flag one weakness, rating rear passenger chest protection as weak in the full-width barrier test, which is worth knowing if you regularly carry adults in the back.

Passive Safety: Airbags, Structure and the Blade Battery

On paper, the two brands take similar approaches to structure but arrive from different directions.

• BYD: The Seal and Atto 3 owner's manuals confirm driver, front passenger, side, side curtain, and far-side centre airbags. Cell-to-body construction makes the Blade Battery a structural member
• Tesla: Rear underbody castings combine with a structural battery pack to stiffen the safety cell
• Battery fire risk: BYD's lithium iron phosphate Blade Battery is inherently more thermally stable than nickel-based chemistries

The Blade Battery's nail penetration test performance is genuinely a safety differentiator, as our explainer on why the Blade Battery resists thermal runaway explains.

Active Safety: Standard Equipment vs Paid Upgrades

This is where the brands differ most in practice, and where Tesla wins on scores.

BYD fits its full suite as standard on every car: autonomous emergency braking, lane keep assist, adaptive cruise, blind-spot detection, and rear cross-traffic braking. Nothing sits behind a paywall.

Tesla includes basic Autopilot as standard but charges for Enhanced Autopilot and Full Self-Driving. Its Safety Assist scores, 87 and 92 percent, are achieved on standard equipment, which is what Euro NCAP tests.

One honest caveat for BYD owners: in Euro NCAP's separate assisted-driving grading, the Atto 3's adaptive cruise control was rated poorly and not recommended. The Seal's suite is more polished, and our guide to getting the most from the Seal's driver-assistance systems walks through each function.

Child Occupant Protection Scores

BYD is genuinely competitive here, and the Sealion 7 leads outright.

• Sealion 7: 93 percent, with maximum points for both six and ten-year-old dummies, plus child presence detection
• Tesla Model 3 and Model Y: 93 percent each, with radar-based child left alone detection
• Seal: 87 percent, with full marks in the side impact
• Atto 3: 84 percent under ANCAP

One practical restriction matters more than any score. ANCAP notes the Atto 3 has no top tether anchorage in the second-row centre seat, so a child restraint should not be fitted there. 

Pedestrian Safety Comparison

Tesla's lead here is the widest of any category, and it is not close.

• Tesla Model 3: 89 percent, helped by an active bonnet that lifts on impact
• Tesla Model Y: 86 percent
• BYD Seal: 82 percent
• BYD Sealion 7: 76 percent, with weaker head protection near the windscreen pillars
• BYD Atto 3: 69 percent, its weakest result

Which Brand Is Safer Overall?

Tesla holds a narrow overall advantage, but the reason matters. Its lead comes almost entirely from crash avoidance rather than crash protection.

In pure structural terms, the two are closely matched. BYD's adult occupant scores of 87 to 91 percent sit alongside Tesla's 90 to 91 percent. Where Tesla pulls ahead is in pedestrian protection and safety assist, both of which reward sophisticated software.

For families, BYD's child occupant results are the equal of Tesla's, and its Blade Battery offers a real thermal safety advantage. Both brands build genuinely safe cars.

Common Mistakes

• Comparing scores from different years: Protocols tighten regularly, so an older 97 percent is not better than a recent 91 percent
• Assuming ANCAP and Euro NCAP always agree: The Atto 3 scored 84 and 89 percent for child occupants in the two programmes
• Treating five stars as identical: Two five-star cars can differ by 20 percentage points in a category
• Ignoring the safety assist gap: Crash avoidance now carries heavy weighting in the overall rating
• Fitting a child seat in the Atto 3's centre rear position: There is no top tether anchorage there
• Confusing standard and optional systems: Testing programmes rate standard equipment only