Both the RDX and the Nautilus have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive and around view monitors.
The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Acura RDX is safer than the Lincoln Nautilus:
|
RDX |
Nautilus |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
63 |
84 |
Chest Movement |
.6 inches |
1.1 inches |
Abdominal Force |
130 lbs. |
190 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
Hip Force |
462 lbs. |
635 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Max Damage Depth |
11 inches |
16 inches |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Acura RDX is safer than the Nautilus:
|
RDX |
Nautilus |
Overall Evaluation |
GOOD |
GOOD |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
200 |
208 |
Neck Tension |
335 lbs. |
402 lbs. |
Shoulder Force |
223 lbs. |
268 lbs. |
Pelvis |
GOOD |
MARGINAL |
Pelvis Force |
692 lbs. |
1160 lbs. |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
206 |
260 |
Neck Tension |
67 lbs. |
156 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
1.18 in |
1.5 in |
Shoulder Force |
357 lbs. |
424 lbs. |
Torso Deflection Rate |
11 MPH |
11 MPH |
Pelvis |
GOOD |
GOOD |
Head Protection |
GOOD |
GOOD |
For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, daytime pedestrian crash prevention, and nighttime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the RDX its highest rating: “Top Safety Pick Plus” for 2023, a rating granted to only 29 vehicles tested by the IIHS. The Nautilus is only a standard “Top Safety Pick” for 2023.