When you’re standing in a car dealership lot or scrolling through listings late at night, that little gold badge from the Insurance Institute for Highway Safety (IIHS) can feel like just another marketing sticker. But if you’ve ever wondered how a \(45,000 SUV and a \)25,000 sedan both earn the same “Top Safety Pick+” honor, you need to look past the price tag and understand the brutal physics happening behind the scenes. The 2024 model year brought some surprising winners and notable losers, but more importantly, it highlighted exactly what engineers are now prioritizing to keep your ribcage intact.
Let’s walk through the mechanics of these tests, why the “small overlap” metric is the gold standard for real-world survival, and what the 2024 winners are actually doing right.
The Philosophy Behind the Crash: It’s Not Just About Hitting Things
Many people assume safety ratings are based on broadside collisions or those cinematic head-on impacts you see in movies. The reality is that the IIHS designs tests based on where crashes actually happen and how they happen. The majority of severe fatalities occur in frontal offset crashes where the car doesn’t hit another vehicle broadside, but rather at an angle that leaves a significant portion of the front end intact to crush.
In 2024, the IIHS maintained its rigorous standards. To earn the top “Top Safety Pick+” (TSP+) award, a vehicle must ace five distinct crashworthiness evaluations, have acceptable ratings for headlamp performance (if equipped), and receive good or acceptable marks for pedestrian crash prevention and side impact protection. It’s a holistic scorecard. A car might be a tank in a frontal crash but get dinged for poor night-time visibility or failing to prevent a pedestrian from being hit.
The Side Impact Test: A Real-World Update
For the 2024 cycle, the IIHS emphasized the updated side barrier test. Previously, a car could pass by having strong door beams but weak roof pillars or B-pillars. The new test uses a heavier, faster-moving barrier that better simulates a real SUV or truck hitting the side of a sedan. In 2024, we saw several vehicles struggle here. This is why you might see a car with a 5-star NHTSA rating still miss out on the IIHS top tier—it’s because the IIHS side test is arguably more punishing and closely mimics the brutal force of a T-bone collision at 40 mph.
Decoding the Small Overlap Front Test
This is the question on every buyer’s mind: What exactly is the small overlap test, and why does it matter so much?
Imagine you’re driving down a suburban street. A deer bolts out. You swerve. The deer goes left, but you don’t. You hit a solid concrete light pole with the front corner of your car—the driver’s side. In a traditional full-width crash test, that corner would be fine because the force is distributed across the entire front grille. But in a small overlap crash, only about 25% of the vehicle’s width hits the obstacle.
This is the nightmare scenario for automotive engineers. Here’s why it’s deadly:
- The Path of Least Resistance: When the wheel well takes the impact, the force doesn’t get absorbed by the crumple zones designed to collapse in a controlled manner. Instead, the momentum drives the wheel backward into the passenger compartment.
- The B-Pillar Buckle: In older cars, the B-pillar (the vertical post behind the driver’s head) would fold inward like an accordion, crushing the driver’s chest.
- Submarining: The occupant can slide under the seatbelt, engaging only the lap belt, which acts like a garrote against the stomach.
To pass the 2024 small overlap front test (both driver-side and passenger-side), the car’s structure must have a robust “force path.” This means the frame rails need to be strong enough to divert the impact energy around the footwell and away from your legs, while the cabin structure (doors, pillars, floor pans) must remain rigid enough to not collapse inward.
If you look at the crash test videos from 2024, the winners look almost surgical. The front end is mangled, the wheel is kicked back, but the door handles are still accessible, and the dummy’s head doesn’t touch the steering column. That’s engineering at its finest.
2024 Top Safety Pick+ Winners: What They Have in Common
The 2024 list is a mix of electric vehicles, traditional sedans, and rugged SUVs. Here’s a breakdown of some standouts and what makes them safe.
The Electric Contenders: Tesla Model 3 and Model Y
It’s worth noting that Tesla’s Model 3 and Model Y retained their top safety honors. There’s a common misconception that EVs are somehow less safe due to their battery packs, but the opposite is often true. The battery pack is mounted flat in the floor, creating a very low center of gravity and a rigid “skateboard” chassis. This rigidity helps prevent the cabin from twisting during a crash.
However, the Model 3’s headlight ratings have been a point of contention in previous years. For 2024, Tesla made adjustments to the adaptive front-lighting systems to ensure they don’t blind oncoming traffic while still illuminating the road ahead adequately. This is why you might see the Model 3 earn TSP+ while other Teslas drop to TSP—the headlights are the differentiator.
The Midsize Sedans: Honda Accord and Hyundai Sonata
The Honda Accord and Hyundai Sonata are staples in this category. What’s interesting here is that these cars, often priced in the \(25,000–\)35,000 range, are utilizing high-strength steel in critical areas like the A-pillars and door beams. For the small overlap test, these cars have reinforced front side members that redirect impact forces away from the footwell.
If you’re a parent buying a first car for your teen, the Accord is a favorite not just for reliability, but because its structure is designed to preserve survival space even in the worst-case scenario. The IIHS data shows that the Accord’s cabin integrity remains high even when the front end is significantly deformed.
The SUVs: Volvo XC90 and Subaru Outback
Volvo has built its brand on safety, and the 2024 XC90 continues to deliver. The XC90 uses boron steel in its passenger cage, which is one of the strongest materials available for automotive safety. This allows the car to remain rigid during a crash while other parts crumple. The Subaru Outback, on the other hand, relies on its Symmetrical All-Wheel Drive and a specific front-end structure that spreads impact energy efficiently.
The Outback is particularly notable for its small overlap performance. Subaru has tuned the front frame rails to ensure that in a corner-impact crash, the wheel assembly moves in a controlled path that minimizes intrusion into the footwell. This is a perfect example of how suspension design and crash safety are intertwined.
Headlight Ratings: The Overlooked Safety Feature
One of the most important—and often ignored—aspects of the 2024 rankings is headlight performance. You can have the strongest cage in the world, but if you can’t see the deer at night, none of it matters.
The IIHS rates headlights on a scale of Acceptable to Poor. In 2024, many popular vehicles, including some versions of the Ford F-150 and Jeep Grand Cherokee, received “Poor” or “Marginal” ratings for their high beams. This is a huge deal. A “Poor” rating means the headlights either don’t illuminate the road far enough or cause excessive glare for oncoming drivers.
When you’re shopping for a 2024 vehicle, don’t just look at the crash test videos. Check the headlight ratings on the IIHS website. LED and adaptive LED headlights are becoming standard, but they aren’t always calibrated correctly. If a car has a “Marginal” headlight rating, it’s significantly less safe to drive at night, regardless of its crashworthiness score.
Side Impact and Rear Crash Prevention
The 2024 updates also placed a heavier emphasis on side impact protection. The IIHS introduced a new side barrier test that simulates a heavier vehicle hitting the side of a car at 37 mph. This is a more realistic representation of modern traffic, where smaller cars are frequently sideswiped by larger SUVs and trucks.
Vehicles that passed this test effectively have strong door beams and reinforced B-pillars. The Tesla Model Y, for instance, performed well here due to its rigid battery pack acting as a structural member, effectively reinforcing the floor and sides of the cabin.
Additionally, rear crash prevention systems are now a key factor. The IIHS evaluates whether a car can automatically brake to avoid hitting a vehicle or pedestrian from behind. This isn’t just about convenience; it’s about preventing the secondary crashes that often cause more injuries than the initial impact.
What This Means for You as a Buyer
So, you’ve read through the tests, the headlight ratings, and the side impact data. How do you use this information?
First, prioritize the “Top Safety Pick+” designation. It’s a strong indicator that the vehicle has been scrutinized for structural integrity, occupant protection, and technological safety features. However, don’t stop there. Look at the specific test results. If a car has a “Good” rating in the small overlap test but a “Poor” headlight rating, it’s a trade-off you need to consider based on your driving habits. If you drive mostly during the day, the headlight rating might be less critical. If you commute on dark rural roads, it’s non-negotiable.
Second, pay attention to the side impact ratings. As mentioned, these tests are getting harder. A “Good” side impact rating means the car has been tested against a heavier, faster barrier and still protected the dummy’s head and pelvis effectively. This is increasingly important as the road share shifts toward larger, heavier vehicles.
Finally, remember that safety is a system. The best-crashing car in the world is only as safe as the driver operating it. Features like automatic emergency braking, lane-keeping assist, and blind-spot monitoring are part of the IIHS evaluation for the “Top Safety Pick+” award. These technologies are designed to prevent the crash in the first place, which is always the safest outcome.
The 2024 winners prove that safety isn’t just about price or prestige. A \(25,000 Hyundai Sonata can offer protection comparable to a \)50,000 luxury sedan if the engineering behind the small overlap and side impact tests is executed correctly. The IIHS data gives you the roadmap. Use it to find a car that not only looks good but stands a real chance of keeping you and your passengers safe when the unexpected happens on the road.