2020 Buick Regal Sportback Dimensions, Sizes & Specifications
Based on 6 trims — exact values when identical, ranges when trims differ. Generation: Sixth generation.
- Length192.9 in
- Width73.3 in
- Height57.3 in
- Wheelbase111.4 in
- Curb weight3,748 lb – 4,270 lb
- Length192.9 in
- Height57.3 in
- Wheelbase111.4 in
- Curb weight3,748 lb – 4,270 lb
- Width73.3 in
Proportional exterior silhouette from catalog length, width and height. The explorer below is a systems map — different purpose, not a second silhouette.
Explore your 2020 Buick Regal Sportback
Interactive systems diagram for this model year — measure, check fitment, and open the matching SpecSizes tools. Schematic only; not photorealistic body styling.
- Dimensions
- Wheels
- Tires
- Interior
Available for this vehicle
- Dimensions
- Wheels
- Tires
- Interior
Select a system below or on the diagram. This schematic marks measurement areas — it is not body-accurate styling.
Catalog summaries
Exterior: 192.9 in · 73.3 in · 57.3 in. Full dimensions
Wheels: bolt pattern 5x115, bore 70.3 mm. Wheel sizes
Tires: P245/40VR19.0 BSW AS, P225/55VR17.0 BSW AS, P245/45VR18.0 BSW AS, 225/55R17…. Tire sizes
What do you want to check?
- Compare this vehicleSize vs a competitor
- See size by yearModel history & chart
- Will it fit in my garage?Door & bay clearance calculator
- Find cars similar in sizeExterior length, width & height neighbors
- Browse cars by sizeReverse-search by length, width & height
- Check tire sizeOEM tire sizes
- Check wheel sizeBolt pattern, bore, offset
- Wheel fitment & interchangeCompare donor or custom wheels
Exterior dimensions
| Length | 192.9 in |
|---|---|
| Width | 73.3 in |
| Height | 57.3 in |
| Wheelbase | 111.4 in |
Interior dimensions
| Front headroom | 39.0 in |
|---|---|
| Rear headroom | 37.0 in |
| Front legroom | 42.0 in |
| Rear legroom | 36.9 in |
| Front shoulder room | 57.0 in |
| Rear shoulder room | 55.0 in |
| Front hip room | 55.0 in |
| Rear hip room | 54.0 in |
Weight & capacities
| Curb weight | 3,748 lb – 4,270 lb |
|---|---|
| Fuel tank | 16.3 gal |
| Max towing capacity | 1,000 lb |
Engine
- 1868 1912
- 1871 1915
| Torque | 260 – 295 lb-ft |
|---|
Torque shown in lb-ft as stored in the catalog.
Wheels, tires & maintenance sizes
Tire sizes Full tire size page → · Wheel fitment →
- P245/40VR19.0 BSW AS
- P225/55VR17.0 BSW AS
- P245/45VR18.0 BSW AS
- 225/55R17
- 235/45R18
- 245/35R20
- 245/40R19
- 245/45R18
Trim-by-trim dimensions (6 trims)
| Trim | Length | Width | Height | Wheelbase | Clearance | Curb wt |
|---|---|---|---|---|---|---|
| Avenir 4dr Front-wheel Drive Hatchback | 192.9 | 73.3 | 57.3 | 111.4 | — | 3840 |
| Base 4dr Front-wheel Drive Hatchback | 192.9 | 73.3 | 57.3 | 111.4 | — | 3748 |
| Essence 4dr All-wheel Drive Hatchback | 192.9 | 73.3 | 57.3 | 111.4 | — | 4096 |
| Essence 4dr Front-wheel Drive Hatchback | 192.9 | 73.3 | 57.3 | 111.4 | — | 4096 |
| GS 4dr All-wheel Drive Hatchback | 192.9 | 73.3 | 57.3 | 111.4 | — | 4270 |
| Preferred 4dr Front-wheel Drive Hatchback | 192.9 | 73.3 | 57.3 | 111.4 | — | 3840 |
Values in inches / pounds as stored. Ranges above reflect trim variation.
Same generation (Sixth generation): years 2018–2020. View model overview