BYD Seal Dimensions & Boot Space: Complete Size Guide
The BYD Seal measures 4,800 mm long, 1,875 mm wide (excluding mirrors), and 1,460 mm tall, with a 2,920 mm wheelbase that delivers generous rear legroom for a sedan of this class. Boot space is 400 litres with seats up, and the Seal also includes a 53-litre front storage compartment (frunk) for charging cables and smaller items. Total usable storage sits at roughly 453 litres before folding any seats.
Quick Stats: BYD Seal Size at a Glance
- Length: 4,800 mm
- Width (excl. mirrors): 1,875 mm
- Height: 1,460 mm
- Wheelbase: 2,920 mm
- Boot volume (seats up): 400 litres
- Frunk: 53 litres
- Ground clearance: 120 mm
- Turning circle (kerb to kerb): 11.4 m
- Drag coefficient: 0.219 Cd
- Seating capacity: 5 persons
Exterior Dimensions: How Big Is the BYD Seal?
The Seal is a full-size electric sedan. At 4,800 mm long, it sits 80 mm longer than the Tesla Model 3 and roughly level with the Hyundai Ioniq 6. The 1,875 mm width provides a planted, wide-body stance without being difficult to thread through multi-storey car parks.
Height is where the Seal stands apart. At just 1,460 mm, it has a genuinely low, coupe-like roofline that contributes to its class-leading 0.219 drag coefficient. This is great for efficiency and highway range, though it does mean taller drivers should check headroom before buying.
Wheelbase: What 2,920 mm Means for Rear Passengers?
The 2,920 mm wheelbase is one of the longest in its segment. A longer wheelbase pushes the wheels further apart, which directly translates to more cabin length between the front and rear seats. For rear passengers, this means noticeably better legroom than the Tesla Model 3 (2,875 mm wheelbase) or the BMW i4 (2,856 mm).
The rear seat backrest is fixed at 30 degrees on the outboard positions and 27 degrees in the centre, which provides a relaxed seating angle. However, the rear seats do not slide forward or backward, so the space you get is set by the front occupant's seat position.
"Can two adults sit comfortably in the back?"
Yes. With the front seats set to a mid-track position, two adults over 180 cm will find adequate knee clearance and decent shoulder room. The centre seat is tighter due to the narrower backrest angle and the floor tunnel, so three adults across is snug on longer drives.
Can Tall Drivers Fit at 190 cm?
Drivers up to around 185 cm will find the Seal comfortable without any compromise. At 190 cm and above, the low 1,460 mm roofline starts to limit headroom, especially with the panoramic glass roof. The front seat offers 260 mm of forward-backward travel (measured from the end of the slide rail), so leg space is rarely the issue. It is overhead clearance that taller drivers should test during a dealership visit.
Boot Volume: Litres with Seats Up vs. Folded
The Seal's boot holds 400 litres with the rear seats in place. Internal boot dimensions measure approximately 100 cm deep, 93 cm wide, and 44 cm tall. There are two small intrusions at the rear corners from the drive motor housing, which slightly reduce the usable width at floor level.
The rear seats fold in a 60/40 split, creating a longer load floor for items like flat-pack furniture, skis, or camping gear. BYD does not publish an official seats-down volume, but owner measurements suggest approximately 950 to 1,000 litres of total cargo space with both sides folded.
Folding the rear seats: step by step
- Pull up the folding release clasp on the top of the rear seat backrest
- Push the backrest forward until it lies flat against the seat cushion
- Repeat on the other side if needed (60/40 split)
- Check that loose items in the boot are secured before driving
The release mechanism is manual, not electric. It works with the vehicle powered off, which is useful for loading at the shops without starting the car.
Frunk: Does the Seal Have Front Storage?
Yes. The BYD Seal has a 53-litre frunk under the front hood. This is enough for a Mode 2 charging cable, a small backpack, or a few grocery bags. It is not a deep well like the Tesla Model 3's 88-litre front trunk, but it keeps charging cables separate from your main luggage, which is a practical touch.
The Seal's owner's manual also references an engine compartment storage area, and the standard sunshade can be stowed diagonally in the frunk when not in use.
Garage Fit Check: Minimum Space You Need
If you park in a home garage, you need at least 5,200 mm of clear length (4,800 mm plus door-opening clearance) and 2,400 mm of width to open both doors comfortably. The 1,460 mm height means overhead clearance is almost never an issue, even in older low-ceiling garages. The 11.4-metre turning circle is tight enough for most suburban streets and underground car parks.
BYD Seal vs. Competitors: Size Comparison
| Specification | BYD Seal | Tesla Model 3 | Hyundai Ioniq 6 |
|---|---|---|---|
| Length (mm) | 4,800 | 4,720 | 4,855 |
| Width excl. mirrors (mm) | 1,875 | 1,850 | 1,880 |
| Height (mm) | 1,460 | 1,441 | 1,495 |
| Wheelbase (mm) | 2,920 | 2,875 | 2,950 |
| Boot space (litres) | 400 | 425 (incl. frunk) | 401 |
| Frunk (litres) | 53 | 88 | 15 |
| Total storage (litres) | ~453 | ~513 | ~416 |
| Turning circle (m) | 11.4 | 12.1 | 12.0 |
| Drag coefficient (Cd) | 0.219 | 0.219 | 0.210 |
| Measurement note | All dimensions from official manufacturer data. Boot figures are VDA-measured with rear seats upright. | ||
The Seal splits the difference between the shorter Model 3 and the longer Ioniq 6. Where it leads is turning circle: at 11.4 metres, it is noticeably easier to manoeuvre in tight spaces than either competitor.
Common Mistakes When Assessing Seal Space?
- Comparing total boot numbers without checking frunk: The Tesla Model 3's headline "594-litre" figure includes the frunk. The Seal's 400 litres is boot only, so add the 53-litre frunk for a fair comparison
- Assuming low height means cramped inside: The Seal's battery-flat floor and 2,920 mm wheelbase create more interior volume than the roofline suggests
- Ignoring the corner intrusions: The boot has two small bumps at the rear corners from the motor housing that reduce usable width for boxy items
- Forgetting ground clearance: At 120 mm, the Seal sits lower than most SUVs. Check driveway ramps and speed bumps in your area, especially with the correct tyre pressures loaded
Frequently Asked Questions
"How many suitcases fit in the BYD Seal boot?"
Two large suitcases (approximately 75 cm tall) fit side by side, with room for a cabin bag on top. If you fold one side of the 60/40 rear seat, you can fit a third large case lengthwise while keeping two rear passengers seated.
"Is the BYD Seal bigger than a Tesla Model 3?"
Yes. The Seal is 80 mm longer and 25 mm wider, with a 45 mm longer wheelbase. The Model 3 has a slightly larger total storage volume due to its bigger frunk, but the Seal offers more rear passenger space.
"Does the BYD Seal have a spare tyre?"
No. The Seal comes with a tyre repair kit instead of a spare. The under-floor boot space where a spare might sit is used for cable storage. For details on tyre specifications, see our BYD Seal ADAS features guide which covers the tyre pressure monitoring system.