Size comparison · drawn to scale
Cadillac XT4 vs Audi Q4 e-tron I: size comparison
- Length XT4 12 mm0.5 in longer
- Width XT4 15 mm0.6 in wider
- Height About the same height
- Boot XT4 117 L4.1 cu ft more
Car 1 blue, solid outline
Car 2 coral, dashed outline

Change cars
Zoom in to read the measurements - or see the table below.
Scale about 1:21 on a desktop screen · grid 500 mm1 ft · in Overlay both cars start at the front bumper Side view: dashed lines mark the axles Front view: width without mirrors Top view: footprint on the road
Dimensions and difference
The XT4 is 12 mm0.5 in longer, 15 mm0.6 in wider and 2 mm0.1 in lower than the Q4 e-tron I. Its wheelbase is 16 mm0.6 in longer.
| Dimension | XT4 | Q4 e-tron I | Difference, car 1 vs car 2 |
|---|---|---|---|
| Length | 4,600 mm15 ft 1 in15 ft 1 in4,600 mm | 4,588 mm15 ft 1 in15 ft 1 in4,588 mm | +12 mm+0.5 in +0.3% |
| Width | 1,880 mm6 ft 2 in6 ft 2 in1,880 mm | 1,865 mm6 ft 1 in6 ft 1 in1,865 mm | +15 mm+0.6 in +0.8% |
| Height | 1,630 mm5 ft 4 in5 ft 4 in1,630 mm | 1,632 mm5 ft 4 in5 ft 4 in1,632 mm | −2 mm−0.1 in −0.1% |
| Wheelbase | 2,780 mm9 ft 1 in9 ft 1 in2,780 mm | 2,764 mm9 ft 1 in9 ft 1 in2,764 mm | +16 mm+0.6 in +0.6% |
| Footprint | 8.65 m²93.1 sq ft93.1 sq ft8.65 m² | 8.56 m²92.1 sq ft92.1 sq ft8.56 m² | +0.09 m²+1.0 sq ft +1.1% |
| Boot | 637 L22.5 cu ft22.5 cu ft637 L | 520 L18.4 cu ft18.4 cu ft520 L | +117 L+4.1 cu ft +22.5% |
| Kerb weight | Not in our catalog yet | 1,890–2,210 kg4,167–4,872 lb4,167–4,872 lb1,890–2,210 kg | - |
Width without mirrors. Figures come from the catalog version pages; the drawing uses the same numbers. Body outlines are generic for the body type - proportions are exact, styling is not. Weight difference compares the lightest versions.
Garage and parking
A typical single garage is about 5.5 × 3.0 m18 ft 1 in × 9 ft 10 in inside; a parking bay about 5.0 × 2.5 m16 ft 5 in × 8 ft 2 in. Room to open a door: about 600 mm2 ft each side.
XT4
- Single garage
- Tight 900 mm2 ft 11 in to spare in length, 560 mm1 ft 10 in each side
- Parking bay
- Tight 400 mm1 ft 4 in to spare in length, 310 mm1 ft 0 in each side
Q4 e-tron I
- Single garage
- Tight 912 mm3 ft 0 in to spare in length, 568 mm1 ft 10 in each side
- Parking bay
- Tight 412 mm1 ft 4 in to spare in length, 318 mm1 ft 1 in each side
Frequently asked questions
Which is bigger, the Cadillac XT4 or the Audi Q4 e-tron I?
The Cadillac XT4 is the bigger car by footprint (length × width). The XT4 is 12 mm longer, 15 mm wider and 2 mm lower than the Q4 e-tron I. Its wheelbase is 16 mm longer.
Will the Cadillac XT4 and the Audi Q4 e-tron I fit in a standard garage?
In a typical single garage of 5.5 × 3.0 m inside: The Cadillac XT4 fits, but it is tight to get out (900 mm to spare in length, 560 mm each side). The Audi Q4 e-tron I fits, but it is tight to get out (912 mm to spare in length, 568 mm each side). Widths are without mirrors; check your own garage with our garage checker.
Which has the bigger boot?
The Cadillac XT4: 637 L against 520 L in the Audi Q4 e-tron I (seats up, as quoted by the maker).
Drawn to one scale
Both cars use the same millimetre grid, so a longer bonnet or a taller roof shows exactly as it is.
Wheels at the real wheelbase
Dashed lines mark the axles. In Overlay both cars start at the front bumper; car 2 has a dashed outline.
Will it fit my garage?
Switch to Top view, or to feet and inches if your garage plan is in feet. Allow about 600 mm (2 ft) for opening the doors.
