
We spent a full day range‑testing a 2024 Hyundai Ioniq 5 RWD Long Range over city streets, steady 70‑mph highway, and an 80‑mph stint in light rain and wind. Here’s how it performed, with measured efficiency, state‑of‑charge changes, and a fast‑charge stop.
Test car: 2024 Hyundai Ioniq 5 RWD Long Range on 19‑inch all‑season tires (41 psi cold), single motor, heat pump, and the 77.4 kWh pack (≈74 kWh usable). EPA range is 303 miles. The E‑GMP 800‑V system supports up to ~235 kW DC fast charging, and Hyundai quotes 10–80% in about 18 minutes when the pack is preconditioned. Conditions: two occupants and ~150 lb of cargo (≈4500 lb total), ambient 48–64°F, light rain and a 12–15 mph headwind developing in the afternoon.
We started at 100% SoC, HVAC on Auto at 72°F with seat heaters on low. Routes were a 52‑mile suburban loop (30–45 mph), a 94‑mile 70‑mph interstate leg, and a 60‑mile 80‑mph interstate leg with mild elevation changes (±350 ft overall). City/suburban loop (52 miles): Using i‑Pedal most of the time, traffic flowed but included frequent stops. The heat pump drew ~1–2 kW for the first 10 minutes before tapering.
We averaged 4.6 mi/kWh (217 Wh/mi). Energy used was 11.3 kWh, moving SoC from 100% to 85%. Ride quality is supple on 19s, and the car’s brake‑to‑regen handoff is smooth; one‑pedal driving felt natural in town. 70‑mph highway leg (94 miles): Crosswind 5–10 mph, temps around 60°F, HVAC steady.
Consumption settled at 3.2 mi/kWh (312 Wh/mi). We used 29.4 kWh, reducing SoC from 85% to 45%. Extrapolated range at this pace is ~237 miles from full. Lane‑centering tracked cleanly, and energy prediction in the built‑in nav was conservative by ~4%, which helped with buffer planning.
Noise levels are low; the Ioniq 5 proved relaxed at a true 70 mph. 80‑mph/rain leg (60 miles): Light rain, 12–15 mph headwind, occasional wiper/defog use. Efficiency dropped to 2.6 mi/kWh (385 Wh/mi), using 23.1 kWh and taking SoC from 45% to 14%. Wet‑road and aero penalties are obvious at these speeds.
Pack temperatures held in the mid‑80s°F and power delivery stayed consistent. Total pre‑charge distance was 206 miles, consuming 63.8 kWh (overall 3.23 mi/kWh, 309 Wh/mi). A DC session at an EA 350‑kW unit from 14% to 80% took 19 minutes, delivering 48.7 kWh; peak observed was 228 kW with a taper to ~150 kW by 55%. Takeaways: In mild weather, expect roughly 230–240 miles at a steady 70 mph, 180–200 miles at 80 mph in rain or headwind, and well over 300 miles in mixed urban driving.
Our day averaged a projected 239 miles full‑to‑empty, broadly aligning with the EPA rating but highly sensitive to speed and conditions. Preconditioning before fast‑charging, using seat heaters, and sticking with 19‑inch tires all help efficiency. For road trips, plan around 10–80% charge windows to leverage the Ioniq 5’s strong DC curve and keep stops under 20 minutes.