The specification sheet tells you a car's maximum towing capacity. It doesn't tell you whether the car tows confidently at that figure, whether the braking system can manage a loaded trailer's inertia on a wet motorway, or whether the suspension will feel composed with a two-tonne caravan hitched behind it. These are the things that separate a genuinely good tow car from one that technically has the numbers and nothing else.
Towing is not the same as driving. A car that's comfortable, economical, and enjoyable unloaded can feel nervous, pitchy, and demanding the moment a trailer is attached. The cars that earn genuine respect among caravanners and trailer users are the ones that were engineered with the towing application in mind — where the power delivery, gearing, suspension, and braking were calibrated for the dynamic changes that a towed load introduces.
This guide covers the numbers you need to understand, the features that matter most in a tow car, and the specific models that earn their recommendations.
The numbers: towing capacity, kerbweight, and the 85% rule
Maximum towing capacity is the braked trailer maximum mass the manufacturer has approved for the vehicle. This is the number most buyers look at first, and it matters — you cannot legally tow more than this figure. But it's not the only number that determines whether a car tows well.
The 85% rule is the widely observed practical guideline for caravan towing: the fully loaded trailer should not exceed 85% of the towing vehicle's kerbweight. This is not a legal requirement — you can tow up to the manufacturer's maximum braked trailer weight. It's a stability guideline. The physics of trailer sway — the pendulum effect that develops when a trailer's inertia approaches or exceeds the towing vehicle's mass — mean that a match ratio above 85% requires an experienced driver to manage safely in an emergency. At 100% and above, an uncontrolled sway is extremely difficult to recover without specific training.
Kerbweight is the vehicle's weight with all fluids (fuel, oil, coolant) but without occupants or cargo. The specification sheet lists it. The 85% rule then gives you the maximum trailer mass for safe caravanning. A car with a 1,800kg kerbweight has a practical caravan limit of 1,530kg. A car with a 2,200kg kerbweight can manage a 1,870kg caravan more confidently at the same legal maximum.
Nose weight is the third critical figure: the downward force the trailer's coupling point exerts on the tow ball. Most tow bars have a nose weight limit of 75–100kg. Exceeding it overloads the rear axle, degrades steering response, and is illegal. Nose weight is controlled by how the trailer or caravan is loaded — heavier items forward of the axle increase it; light packing towards the rear reduces it.
What makes a genuinely good tow car
Torque at low revs. Pulling a trailer from standstill, up an incline, or into a motorway merge requires torque at relatively low engine speeds. Diesels are the traditional choice for towing precisely because their torque peaks low in the rev range and sustains across a wide band. A 2.0 TDI or 2.0 dCi with 380Nm of torque available from 1,750rpm has the pulling character suited to towing in a way that many petrol units — whose torque comes higher in the rev range — don't match as naturally.
Trailer Stability Assist. This is the feature that separates serious tow cars from those that merely have the capacity. Trailer Stability Assist (called various names by different manufacturers: Electronic Trailer Stability, Trailer Sway Assist, Trailer Control) uses the vehicle's existing stability control sensors to detect the onset of trailer sway and automatically applies individual wheel brakes to bring the combination back into control. On cars where this is fitted and functioning, an incipient sway can be controlled without driver input. On cars without it, recovery from sway requires rapid, specific driver response that most people have never practised.
Verify this feature is fitted to the specific car you're viewing before purchase. It's listed in the specification sheet and should show as an active function during a towing demonstration. Many modern SUVs and estates have it as standard; older models and lower-spec variants may not.
Automatic gearbox with manual override. The ability to select and hold a specific gear when descending a long slope with a loaded trailer is valuable — it allows engine braking to supplement the foundation brakes rather than relying on brakes alone, which reduces fade risk on long descents. Most modern automatics allow this via paddle shifters or a manual gate. Manual gearboxes require the driver to manage this actively.
Rear suspension setup. Coil-spring and multi-link rear suspension (common on SUVs and estates) handles the additional tongue weight of a trailer better than torsion beam setups (common on smaller cars) under sustained load. This is not an absolute rule — some torsion beam cars tow adequately — but it's a contributing factor in the composed-towing character of larger SUVs and proper estate cars.
Volkswagen Touareg — the reference tow car under £30,000
The second-generation Touareg (7P, 2010–2018) is the tow car that professional caravanners and horse trailer users have relied on for fifteen years because it delivers on every criterion. The 3.0 V6 TDI diesel with 430–500Nm of torque, air suspension as standard, a maximum braked towing capacity of 3,500kg, trailer stability standard, and a kerbweight of 2,100–2,300kg that keeps the match ratio manageable for large caravans. A 2014–2017 Touareg 3.0 V6 TDI in SE or R-Line specification at £16,000–£23,000 is the most serious tow car available at this price point for buyers who regularly tow large or heavy trailers.
The air suspension is standard but introduces the reliability consideration noted on other air suspension systems — check for level riding and no warning lights specifically during the viewing. The V6 diesel is a complex and expensive engine to service but has good longevity when maintained correctly. Full VW main dealer history is particularly valuable on a Touareg at this age.
Skoda Kodiaq 2.0 TDI — the practical budget tow car
For buyers who don't need the Touareg's 3,500kg capacity and want a car that tows competently in the 1,500–2,000kg range without the Touareg's running costs, the Kodiaq 2.0 TDI 150PS or 190PS with 4x4 is an excellent choice. Maximum braked towing capacity of 2,000kg (150PS) or 2,500kg (190PS), trailer stability standard from 2018, and the VW Group platform reliability that makes the Touareg compelling — at significantly lower purchase and running cost.
A 2018–2020 Kodiaq 2.0 TDI 150 or 190 4x4 SE L at £17,000–£22,000 is the recommendation for buyers towing family caravans or medium trailers who want reliability, stability control, and all-weather towing capability without the Touareg's full capability premium. The DSG gearbox in these applications uses the more robust DQ500 wet-clutch unit rather than the DQ200 that causes low-speed concerns — it's smooth and well-suited to towing applications.
Volvo XC90 D5 — premium towing with Scandinavian composure
The second-generation XC90 (2015 onwards) with the D5 AWD powertrain is a premium tow car that combines 2,700kg maximum braked towing capacity with the XC90's notably composed, long-travel suspension. The D5 diesel produces 400Nm of torque from 1,750rpm. Trailer stability is standard. The XC90's relatively high kerbweight (2,100kg) provides a comfortable match ratio for most family caravans.
A 2016–2018 XC90 D5 AWD Momentum or Inscription at £20,000–£27,000 is at the top of most used tow car budgets but delivers a combination of towing confidence, passenger comfort, and interior quality that nothing else in this class matches. Volvo's long-standing reputation for safety engineering extends to the towing application. The IntelliSafe active safety systems are comprehensively proven. For buyers who cover long distances towing caravans, the XC90's motorway composure is genuinely exceptional.
Land Rover Discovery Mk5 (2017–2021) — if the budget extends and eyes are open
The fifth-generation Discovery with Ingenium diesel engines and its 3,500kg maximum braked towing capacity is the definitive family tow car on capability grounds. Air suspension standard, Terrain Response 2 system, class-leading approach and departure angles for off-road towing scenarios — it's genuinely without peer in the family towing segment on raw capability.
The caveat is the same as any JLR product: reliability data and running costs are above average, and the post-2019 cars are better than the pre-2019 generation. A well-documented 2019–2021 Discovery D250 or D300 is a powerful argument if the budget extends. For buyers who want the capability without the reliability risk, the Touareg and the XC90 are more dependable choices at similar prices.
A note on electric cars for towing
Several current EVs are approved for towing — the Tesla Model 3, VW ID.4, and others have towing capacity ratings. The challenge in towing applications is range: a significant trailer load reduces EV range materially, and the charging infrastructure for EV tow cars on longer caravan routes requires planning. It's a workable proposition for short journeys with access to destination charging, and the technology is improving. For longer-distance regular caravanning, the diesel remains the more practical choice at the current state of charging infrastructure.
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Before you buy a tow car
Confirm the tow bar is fitted (not all used SUVs will have one — it's an option, not standard). Check whether the tow bar is fixed, detachable, or retractable — detachable is more convenient for daily use without a trailer. Confirm the 7-pin or 13-pin electrics are wired correctly — the lighting and brake connection from vehicle to trailer is a legal requirement. And if you're caravanning specifically, check whether the car is approved by the Caravan and Motorhome Club's tow car guide for the specific caravan you're using.
Also see: Best Used 7-Seater Cars | Discovery Sport Buying Guide | Most Reliable Used Cars | True Cost of Car Ownership