2025 BYD Song Plus EV Review: Range, Charging, and Tax Credit Reality

Quick Verdict: The BYD Song Plus at a Glance

The 2025 BYD Song Plus (sold as the Seal U EV in European and select international markets) is BYD's midsize electric crossover aimed squarely at the family-EV segment. With a 71.8 kWh Blade LFP battery, up to 310 miles of EPA-estimated range (in its most efficient configuration), and a starting price that undercuts rivals like the Tesla Model Y and Hyundai Ioniq 5 on paper, the Song Plus has generated significant interest among US-based EV shoppers. But availability, charging infrastructure compatibility, and federal tax credit eligibility tell a more complicated story than the spec sheet alone.

Below, we break down every number that matters — range, charging speeds, battery chemistry, real-world efficiency, pricing, and the §30D tax credit rules — so you can decide whether the Song Plus belongs on your shortlist or whether a competitor better fits your needs.

Range and Real-World Efficiency

The 2025 BYD Song Plus FWD carries an EPA-estimated range of 310 miles, while the dual-motor AWD variant drops to approximately 280 miles due to the added weight and parasitic loss of the rear motor. These figures are competitive with the Hyundai Ioniq 5 Standard Range (303 mi) and slot in below the Tesla Model Y Long Range (330 mi) and the Kia EV6 Long Range (310 mi tie).

The 71.8 kWh battery uses BYD's proprietary Blade cell format with lithium iron phosphate (LFP) chemistry. LFP offers significant advantages: longer cycle life (typically 3,000+ full cycles before hitting 80% state of health), superior thermal stability (lower risk of thermal runaway), and no cobalt or nickel in the cathode. The trade-off is lower energy density than NMC, meaning BYD needs a physically larger, heavier pack to achieve the same range — which partly explains the Song Plus's ~4,400 lb curb weight.

Efficiency lands at approximately 109 MPGe combined (31 kWh per 100 miles) for the FWD model, according to fueleconomy.gov data patterns for vehicles in this class. The AWD variant drops to roughly 98 MPGe combined (34 kWh/100 mi).

Charging Speed: DC Fast Charging and Home Level 2

Charging is where the Song Plus reveals one of its most significant limitations compared to rivals built on 800V architectures like the Hyundai Ioniq 5, Kia EV6, and Porsche Macan EV. The Song Plus operates on a 400V electrical architecture, capping its peak DC fast-charge rate at 90 kW.

At a 150 kW or 350 kW DC fast charger, the Song Plus will not pull more than 90 kW. The charge curve holds relatively steady between 10% and 55% state of charge (SoC), then tapers progressively: expect ~65 kW from 55–70% SoC, and ~35 kW from 70–80% SoC. This taper is typical of LFP packs, which have a flatter voltage curve that makes state-of-charge estimation harder and forces the battery management system (BMS) to charge more conservatively in the upper range.

For context, the Hyundai Ioniq 5 peaks at 240 kW and achieves 10–80% in roughly 18 minutes on a 350 kW charger. The Tesla Model Y Long Range peaks around 250 kW with a 10–80% time near 20 minutes. If you road-trip frequently and rely on DC fast charging, the Song Plus's 42-minute 10–80% window will mean longer stops — a real consideration for families on interstate drives.

On Level 2 home charging at 7 kW (32A), the Song Plus adds about 25 miles of range per hour, fully replenishing the 71.8 kWh pack in roughly 10 hours. This is adequate for overnight charging and typical daily commutes. If your home electrical panel supports a 48A circuit, you won't extract more from the Song Plus because its onboard charger is limited to 7 kW — a hardware ceiling, not an infrastructure one.

The Song Plus ships with a CCS1 connector in markets where it is currently sold. For US buyers, BYD has not yet confirmed NACS (Tesla Supercharger) native compatibility or adapter availability. This is a critical point: Tesla's Supercharger network is the most reliable DC fast-charging infrastructure in the US, and without native NACS or a confirmed adapter, Song Plus owners would rely on Electrify America, EVgo, and ChargePoint networks, which have more variable uptime records.

Performance, Drivetrain, and Driving Dynamics

The Song Plus offers two powertrain configurations:

• FWD (single motor): 201 hp, 229 lb-ft of torque, 0–60 mph in 7.9 seconds. Adequate for commuting and highway merging, but not quick by EV standards.
• AWD (dual motor): 315 hp, 384 lb-ft combined, 0–60 mph in 5.9 seconds. A meaningful step up that makes highway passing effortless and gives the crossover genuine acceleration punch.

Neither variant will challenge a Tesla Model Y Performance (3.5 sec to 60) or a Ford Mustang Mach-E GT (3.5 sec), but the AWD Song Plus is competitive with the base Model Y Long Range (5.0 sec) and the Volkswagen ID.4 AWD Pro (5.4 sec) in the family-crossover segment.

Ride quality is tuned for comfort over sportiness. The suspension absorbs bumps competently, and cabin noise isolation is strong at city speeds. At highway velocities, wind noise around the A-pillars becomes noticeable — a consequence of the upright crossover profile. Regenerative braking offers two levels (standard and high) but does not achieve true one-pedal driving; the vehicle creeps at very low speeds rather than coming to a complete stop on regen alone, which some EV drivers find frustrating after experiencing full one-pedal systems in Teslas or Hyundais.

Interior, Cargo, and Technology

The Song Plus interior is where BYD makes its strongest value argument. The cabin uses soft-touch materials on the dashboard and door panels, a 12.8-inch rotating center touchscreen (landscape for navigation, portrait for climate/menus), and a 12.3-inch digital instrument cluster. The rotating screen is a signature BYD feature — novel, though the portrait mode can feel gimmicky in practice.

Passenger space:

• Front headroom: 40.2 in / legroom: 41.5 in
• Rear headroom: 38.8 in / legroom: 37.4 in

Rear-seat legroom is generous and competitive with the Tesla Model Y (37.3 in rear) and slightly ahead of the Hyundai Ioniq 5 (36.4 in rear). Three adults can sit across the rear bench on shorter trips, though the center position is narrow.

Cargo volume:

• Behind rear seats: 20.1 cu ft
• Rear seats folded: 52.5 cu ft
• Frunk (front trunk): None — the FWD motor and power electronics occupy the space under the hood.

The lack of a frunk is a missed opportunity for additional storage. The Model Y offers 4.1 cu ft of frunk space, and the Ioniq 5 provides 0.85 cu ft — small, but useful for charging cables.

Driver assistance: The Song Plus comes equipped with BYD's DiPilot system, a Level 2 SAE driver-assist suite including adaptive cruise control, lane-centering assist, automatic emergency braking, blind-spot monitoring, and rear cross-traffic alert. This is not an autonomous driving system — the driver must remain fully engaged with hands on the wheel and eyes on the road at all times. DiPilot does not offer hands-free highway driving like GM's Super Cruise or Ford's BlueCruise, and it lacks the lane-change-on-indicator functionality of Tesla's Autopilot with EAP.

Pricing, Trims, and Federal Tax Credit Eligibility

Estimated US pricing for the 2025 BYD Song Plus (based on international pricing conversions and projected US market positioning):

• Song Plus FWD (base): ~$38,500 MSRP
• Song Plus AWD (premium): ~$44,000 MSRP

These prices position the Song Plus below the Tesla Model Y Long Range ($47,990) and Hyundai Ioniq 5 SEL AWD ($50,100), but above the Chevrolet Equinox EV 2LT ($34,900) and the base Volvo EX30 ($36,345).

Federal EV Tax Credit (§30D) — Critical Caveats

Whether the BYD Song Plus qualifies for the up to $7,500 federal tax credit under IRS §30D rules depends on several requirements that pose challenges for BYD as a Chinese-headquartered manufacturer:

• Battery component sourcing: For 2025, 100% of battery components must be manufactured or assembled in North America to qualify for the $3,750 battery-component half of the credit. BYD's Blade batteries are manufactured in China, which almost certainly disqualifies the Song Plus from this portion.
• Critical minerals: At least 80% of critical minerals (by value) must be extracted or processed in the US or a country with a US free-trade agreement, or recycled in North America. BYD's LFP supply chain is predominantly China-based.
• Foreign Entity of Concern (FEOC): Vehicles with battery components from a FEOC (which includes many Chinese battery manufacturers) are ineligible for any portion of the credit beginning in 2024 for components and 2025 for critical minerals.
• MSRP caps: SUVs/crossovers must have an MSRP at or below $80,000 — the Song Plus clears this easily.
• Buyer income caps: Adjusted gross income must not exceed $150,000 (single), $225,000 (head of household), or $300,000 (joint filing).

Bottom line: Based on current sourcing rules and FEOC restrictions, the BYD Song Plus is very unlikely to qualify for any portion of the $7,500 federal tax credit. This significantly narrows its price advantage over US-built competitors like the Tesla Model Y, Hyundai Ioniq 5 (GA-built), and Chevrolet Equinox EV, which may qualify for partial or full credit. Always verify current eligibility on the fueleconomy.gov tax credit database before purchasing.

Battery Longevity, Warranty, and Degradation

BYD provides an 8-year / 100,000-mile battery and powertrain warranty for the Song Plus, which is standard for the segment. The warranty guarantees the battery will retain at least 70% of its original capacity during the coverage period — consistent with industry norms (Tesla guarantees 70% for 8yr/120k mi, Hyundai guarantees 70% for 10yr/100k mi).

The LFP chemistry is a genuine longevity advantage. Independent testing of LFP cells shows degradation curves that remain flatter than NMC over time: reaching 90% state of health (SoH) after approximately 1,500–2,000 full charge cycles, compared to 800–1,200 cycles for typical NMC packs. For a driver covering 12,000 miles per year with a 310-mile range, that translates to roughly 39 full cycles annually — meaning the battery could theoretically last 38–50 years at 90% SoH under ideal conditions. Real-world factors (heat exposure, DC fast charging frequency, depth of discharge) will accelerate degradation, but LFP packs are generally the most durable chemistry available in consumer EVs today.

One practical advantage of LFP: BYD recommends periodic charging to 100% SoC to help the BMS recalibrate cell voltage readings. Unlike NMC owners who are advised to charge to 80% daily to reduce degradation, LFP owners can charge to 100% regularly without significant longevity penalty — simplifying daily charging routines and giving you the full rated range when you need it.

Who the BYD Song Plus Suits Best

Frequently Asked Questions