Mitsubishi ASX vs Hyundai Tucson Dimensions (2026 Complete Comparison)

The Mitsubishi ASX and Hyundai Tucson are two of Australia's most-shopped SUVs but they sit in different size classes. The ASX is a small SUV at 4,270mm long. The Tucson is a medium SUV at 4,630mm long. The 360mm gap (the length of an average laptop) plus 65mm of width and 121mm of wheelbase add up to two very different ownership experiences. This guide covers every dimension that matters: exterior footprint, garage fit, cabin space, boot capacity, towing limits, and the verdict on which size suits which buyer.

All dimensions sourced from Mitsubishi Australia and Hyundai Australia official specifications, March-May 2026 model year. Numbers verified against Australian Design Rule (ADR) compliance plates.

Quick Answer: The Headline Dimensions

The headline: the Tucson is a class larger. It is not a marginally bigger ASX. It is a properly bigger car that competes against the Mazda CX-5, Toyota RAV4 and Kia Sportage, while the ASX competes against the Mazda CX-3, Toyota Yaris Cross and Kia Stonic.

Length: 360mm Is More Than It Sounds

The ASX is 4,270mm long. The Tucson is 4,630mm long. The 360mm gap sounds small until you visualise it: that's the length of an A3 sheet of paper, or four medium-sized hardcover books stacked end-to-end. In a parking bay, it's the difference between leaving 400mm of clearance behind your car and leaving 40mm.

Where the length matters:

• Parallel parking: The ASX needs a 5.5m kerb gap to comfortably parallel park. The Tucson needs 6.0m. In dense inner-suburb streets that often means an extra block of looking.
• Multi-storey carparks: Australian standard parking bays are 2,400mm wide and 5,400mm long. Both cars fit. But the Tucson uses most of a 4,800mm older bay, leaving the boot lip overhanging the wheel stop.
• Driveway storage: If you park nose-in to a 5m driveway with a road verge behind, the ASX clears the kerb by 730mm. The Tucson by 370mm. Council inspectors notice the difference.
• Ferry, car-train, freight quotes: Most operators price by length band. The ASX usually falls in the under-4.5m band; the Tucson in the 4.5-4.8m band, paying 10-20% more.

Width: 65mm Determines Garage Fit

Excluding mirrors, the ASX is 1,800mm wide and the Tucson is 1,865mm wide. Including folded mirrors, both add roughly 65-75mm. With mirrors out, the ASX needs 2,080mm clear; the Tucson needs 2,140mm.

Australian Garage Standards (AS 2890)

• Modern single garage (post-2000): 3,000mm wide minimum. Both fit easily with room to open doors fully.
• Standard older garage (1970s-90s): 2,700mm wide. ASX: 900mm total side clearance (450mm each side). Tucson: 835mm total. Both fine.
• Tight older garage (1950s-60s): 2,400mm wide. ASX: 600mm total. Tucson: 535mm total. ASX is meaningfully easier to load groceries from the boot side.
• Tight terrace garage: 2,300mm wide. ASX: 500mm total. Tucson: 435mm total. Tucson driver-door opening becomes awkward.

The practical test: if you can't walk past your current car with the doors open to load shopping, the Tucson will not make that situation better. The ASX usually will.

Width Affecting Carpark Bay Use

Sydney CBD parking bays are increasingly 2,300mm wide as operators squeeze more bays into older buildings. The Tucson at 1,865mm body width leaves 217mm per side — about a handspan. Opening doors without dinging the neighbour requires either a vacant bay alongside or careful technique. The ASX at 1,800mm leaves 250mm per side, which is enough for normal door operation against most cars.

Wheelbase: 121mm Becomes Rear Legroom

Wheelbase is the distance between the centres of the front and rear axles. It's the single most important number for cabin space because everything that happens between the wheels is interior space, and everything that happens outside the wheels is just overhang.

ASX wheelbase: 2,634mm. Tucson wheelbase: 2,755mm. The 121mm gap goes almost entirely into rear legroom.

Measured Rear Legroom (mm from seat back to seat back, driver's seat at 175cm setting)

• Mitsubishi ASX: 832mm rear legroom
• Hyundai Tucson: 996mm rear legroom
• Difference: 164mm in favour of Tucson

What 164mm actually means:

• 180cm adult behind 180cm driver: ASX cramped (knees touch the seat back). Tucson comfortable (100mm+ knee clearance).
• Rear-facing child seat: Both fit, but the ASX requires moving the front passenger seat forward 30-50mm. The Tucson doesn't.
• ISOFIX + adult passenger: ASX is tight. The Tucson has room for a forward-facing child seat AND a 175cm adult next to it.
• Long trips with teenagers: The ASX gets complained about. The Tucson doesn't.

Headroom and Shoulder Width

For drivers and passengers over 190cm, the Tucson's extra 25mm of headroom changes the car from ‘manageable’ to ‘comfortable’. For shoulder width, 60mm of rear shoulder room means three adults across the back of a Tucson is realistic for short trips; in an ASX, three adults across the back is uncomfortable after ten minutes.

Boot Space: The Single Biggest Practical Gap

The Tucson has more boot space in every measure. Not by a small margin.

What Fits in Each Boot (Real-World Tests)

• Big-W stroller (folded): Both fit. ASX uses 60% of the boot length, Tucson 50%.
• Two adult mountain bikes (wheels off): Tucson yes, ASX no. The ASX needs a roof rack.
• 26-inch wheeled suitcase, upright: Both fit. The ASX takes one upright; the Tucson takes two.
• Large dog crate (XL, 122 x 75 x 81cm): Tucson yes, ASX no.
• IKEA Pax wardrobe (largest flat-pack, 236 x 75 x 17cm): Tucson with seats folded and front passenger seat slid forward. ASX cannot fit this load at all.
• Folded e-bike (Brompton-class): Both fit, easily.
• Standard 27" road bike (wheels off): ASX no, Tucson yes.
• Two large dogs + two bags of groceries: ASX tight, Tucson comfortable.

The 51L gap with seats up is the difference between ‘weekly groceries fit’ (ASX) and ‘weekly groceries plus the kids' sports gear fit’ (Tucson). The 352L gap with seats folded is the difference between ‘one mid-sized cargo job per trip’ and ‘genuine flat-pack hauler’.

Ground Clearance and Off-Road Geometry

For a fair side-by-side: the ASX has 183mm ground clearance and the Tucson 181mm. Effectively identical and both adequate for fire trails, beach access roads and unsealed gravel.

Approach and Departure Angles (AWD variants)

• ASX: 19.6° approach / 31.0° departure
• Tucson: 17.0° approach / 25.5° departure

The ASX has slightly better angles thanks to shorter overhangs (consequence of its 360mm-shorter length). On a steep dirt-track entry it's the marginal pick. But neither is a serious off-roader — both are city-and-fire-trail SUVs.

Turning Circle: 1.0m Matters in Town

Turning circle is the diameter of the smallest U-turn the car can make. The ASX needs 10.6m. The Tucson needs 11.6m. A full metre is the width of a typical single-vehicle road lane.

Where this matters:

• Three-point turns in narrow streets: ASX often makes it in two moves. Tucson needs three.
• Carpark exit ramps: Tight spiral ramps in Melbourne and Sydney high-rises (typical 6m inner radius) need careful steering in the Tucson; the ASX flows through.
• Driveway angles: Acute-angle suburban driveways (where the gradient meets a side road at less than 90°) can require multiple reverses in the Tucson. The ASX's tighter circle handles them in one go.

Weight: 280-400kg Apart, Impacts Everything

The kerb weight gap shows up in fuel use, performance, tyre wear, brake wear, and rego category.

Practical impact: the Tucson's extra weight means worse 0-100, slightly higher fuel use, and slightly more brake/tyre wear over time. But payload (the weight you can carry, including passengers) is materially better. A Tucson Active can take five adults plus 200kg of luggage. An ASX Exceed runs out of legal payload with four adults and a boot full of camping gear.

Powertrain Dimensions: What's Under the Bonnet

Towing: Where the Tucson Pulls Ahead

• ASX (all variants): 1,500kg braked maximum (1,200kg on low-spec petrol)
• Tucson 2.0 petrol: 1,650kg braked
• Tucson 1.6T Hybrid: 1,650kg braked
• Tucson 2.0 Diesel: 1,900kg braked

For a small camper trailer or jet ski with ATM under 1,500kg, either car does the job. For a single-axle caravan with ATM 1,500-1,900kg (most pop-tops and small caravans), only the Tucson is legal. For 2,000kg+ caravans, neither car is the right choice. Step up to a RAV4, CX-5, Outlander or Sorento.

Pricing Reality Check (May 2026)

The size gap is matched by a price gap, but it's smaller than you might expect because the ASX is positioned as a premium small SUV with high standard equipment.

The base Tucson Active is only $1,160 more than the base ASX LS but gives you a much bigger car. The top-spec Tucson Highlander Diesel is $7,410 more than the top ASX Exceed, but offers AWD, diesel, leather, panoramic roof, and Bose audio that the ASX doesn't match at any price.

Which Should You Buy? A Plain-English Verdict

Buy the ASX if:

• You live and park in inner Sydney, Melbourne or Adelaide where 4,270mm is the difference between fitting and not
• You have an older garage under 2,500mm wide where 65mm matters
• You're commuting solo or with one other adult; rear-seat use is occasional
• You don't tow more than 1,500kg
• You like the Renault-derived European driving character (the ASX is a rebadged Renault Captur)
• You want the long Mitsubishi warranty (10-year conditional)

Buy the Tucson if:

• You regularly carry passengers over 175cm in the back
• You have ISOFIX rear-facing child seats plus a front passenger who needs proper legroom
• You haul cargo — bikes, dog crates, sports gear, IKEA runs
• You tow a caravan or trailer over 1,500kg (and want diesel)
• You want hybrid efficiency in a mid-size SUV (the Elite Hybrid does 5.3L/100km combined)
• You park in modern garages and standard parking bays where the extra size doesn't penalise you
• You prioritise long-distance highway comfort over inner-city manoeuvrability

The Quick Decision Tree

1. Will three people regularly sit in the back? Tucson.
2. Is your garage under 2,500mm wide? ASX.
3. Do you tow over 1,500kg? Tucson (Diesel).
4. Do you parallel park more than three times a week? ASX.
5. Do you need hybrid? Tucson Elite Hybrid.
6. None of the above strongly apply? Either — pick on price, warranty preference and which one you like sitting in.

The Bottom Line

The ASX and Tucson aren't really competitors. They're different-sized solutions to different problems. The ASX is a compact-footprint SUV that gives small-car users SUV ride height and cargo space without small-car footprint penalties. The Tucson is a properly-sized family SUV with mid-size sedan rear space, a real boot, and serious towing capability when ordered as a diesel.

If you cross-shopped them because they appear next to each other in a SUV search, take a tape measure to your usual parking spot, then sit in the back of both cars with the driver's seat in your driving position. The dimensions on paper become obvious in five minutes of physical comparison.

Compare Spec-by-Spec on CarSorted

For a side-by-side ledger of every spec mentioned above, plus running costs, ANCAP scores, and finance estimates, use our compare engine:

• → Compare Mitsubishi ASX vs Hyundai Tucson side-by-side
• Mitsubishi ASX LS spec sheet
• Hyundai Tucson Active spec sheet
• Hyundai Tucson Highlander Diesel spec sheet

Dimensions and specs in this article are verified against Mitsubishi Motors Australia and Hyundai Motor Company Australia official product specifications for the 2026 model year (current as of May 2026). Pricing is MSRP excluding on-road costs and may vary by state and dealer. Tow ratings are manufacturer braked maximums — always check your individual vehicle's GVM, GCM and tow ball download before towing.