2018 Chevrolet Impala Dimensions, Sizes & Specifications
Based on 3 trims — exact values when identical, ranges when trims differ. Generation: Tenth generation.
- Length201.3 in
- Width73.0 in
- Height58.9 in
- Wheelbase111.7 in
- Ground clearance5.1 in
- Curb weight3,662 lb – 3,867 lb
- Length201.3 in
- Height58.9 in
- Wheelbase111.7 in
- Ground clearance5.1 in
- Curb weight3,662 lb – 3,867 lb
- Width73.0 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 2018 Chevrolet Impala
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
- Wipers
- Battery
- Oil
- Interior
Available for this vehicle
- Dimensions
- Wheels
- Tires
- Wipers
- Battery
- Oil
- Interior
Select a system below or on the diagram. This schematic marks measurement areas — it is not body-accurate styling.
Catalog summaries
Exterior: 201.3 in · 73.0 in · 58.9 in. Full dimensions
Wheels: bolt pattern 5x120, bore 66.9 mm. Wheel sizes
Tires: P235/50SR18.0 BSW AS, P245/45VR19.0 BSW AS, 235/50R18, 235/55R17…. 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 wiper sizeBlade lengths
- Check battery sizeGroup size
- Check oil capacityCapacity & viscosity
- Check wheel sizeBolt pattern, bore, offset
- Wheel fitment & interchangeCompare donor or custom wheels
Exterior dimensions
| Length | 201.3 in |
|---|---|
| Width | 73.0 in |
| Height | 58.9 in |
| Wheelbase | 111.7 in |
| Ground clearance | 5.1 in |
Interior dimensions
| Front headroom | 40.0 in |
|---|---|
| Rear headroom | 37.0 in |
| Front legroom | 45.8 in |
| Rear legroom | 39.8 in |
| Front shoulder room | 58.0 in |
| Rear shoulder room | 57.0 in |
| Front hip room | 55.0 in |
| Rear hip room | 54.0 in |
Weight & capacities
| Curb weight | 3,662 lb – 3,867 lb |
|---|---|
| Fuel tank | 18.5 gal |
| Max towing capacity | 1,000 lb |
Engine
- 1874 1912
- 1871 1915
| Torque | 191 – 264 lb-ft |
|---|
Torque shown in lb-ft as stored in the catalog.
Wheels, tires & maintenance sizes
Tire sizes Full tire size page → · Wheel fitment →
- P235/50SR18.0 BSW AS
- P245/45VR19.0 BSW AS
- 235/50R18
- 235/55R17
- 245/30R22
- 245/40R20
- 245/45R19
Wiper sizes Full wiper size page →
- Driver24"
- Passenger19"
Battery group size Full battery size page →
- 48H6
- 91-1
- H6-AGM
- H7-AGM
Oil capacity Full oil capacity page →
- 5W-306 qt
- 5W-205 qt
Trim-by-trim dimensions (3 trims)
| Trim | Length | Width | Height | Wheelbase | Clearance | Curb wt |
|---|---|---|---|---|---|---|
| LS w/1LS 4dr Sedan | 201.3 | 73.0 | 58.9 | 111.7 | — | 3662 |
| LT w/1LT 4dr Sedan | 201.3 | 73.0 | 58.9 | 111.7 | 5.1 | 3682 |
| Premier w/2LZ 4dr Sedan | 201.3 | 73.0 | 58.9 | 111.7 | — | 3867 |
Values in inches / pounds as stored. Ranges above reflect trim variation.
Same generation (Tenth generation): years 2014–2020. View model overview