OverCompare → Insurance → Car Insurance

Which comparison site wins for car insurance?

UK car insurance premiums hit record highs in 2024 before easing slightly in 2026. But the gap between the cheapest and most expensive quotes for the same driver can exceed £500. Comparing multiple sites is non-negotiable.

May 2026Last tested & updated
May 2026 finding

This month, Compare the Market's car insurance panel grew to 110+ insurers — 15 more than GoCompare's 95. Running a test profile (35-year-old driver, comprehensive, full no-claims, Manchester) we found a £47 gap between the cheapest CTM quote and the cheapest GoCompare quote for identical cover. Run at least two comparisons — which site is cheapest varies more than headline reviews suggest.

£941
Average UK car insurance premium in 2026 — down 8% from the 2024 peak
£500+
Typical gap between cheapest and most expensive quotes for identical cover
4
Major UK car insurance comparison sites — each shows different insurers
110+
Car insurers active in the UK in 2026 — no single site shows all of them
34%
Drivers who accept their renewal quote without shopping around — the loyalty tax
Before you compare

6 things car insurance comparison sites won't tell you

🔑
Your renewal quote is almost never your best price
Insurers price renewal quotes higher than new customer quotes by design. Comparing at renewal is not optional — it is financially essential. The average loyalty penalty is £200+ per year.
📅
Compare 3 weeks before renewal for the best rates
Car insurance prices typically drop 21 days before renewal. Leaving comparison until the last day costs money. Set a calendar reminder 25 days before renewal.
🏥
Telematics can save young drivers 30–40%
Black box and telematics policies track driving behaviour and reward safe drivers with lower premiums. For drivers under 25, telematics policies are almost always cheaper than standard cover.
💳
Paying annually vs monthly — a hidden cost
Paying monthly adds 20–30% annual interest to your premium. If you can pay annually, the saving is substantial. Some comparison sites don't highlight this clearly.
🚗
Modifications must be declared — or your cover is void
Any modification beyond factory specification must be declared. This includes alloy wheels, tinted windows, dash cams (on some policies) and engine modifications. Non-declaration voids your policy.
🔄
Voluntary excess reduces premium — but has a cost
Increasing your voluntary excess reduces your premium. But if you claim, you pay both compulsory and voluntary excess. Don't set voluntary excess higher than you could realistically afford to pay.
Car Insurance Comparison Sites — Ranked UK 2026
Good
Mixed
Poor
1
Compare the Market
comparethemarket.com
Commission: Yes Full Market: No
Visit Site →
Pros
  • Widest panel (110+ insurers)
  • Consistently cheapest quotes
  • Best telematics range
Excludes
  • Direct Line
  • Aviva
  • NFU Mutual
Verdict: Compare the Market consistently shows the widest panel of car insurers and surfaces the cheapest quotes more often than any competitor. The essential first stop.
9.1
2
MoneySupermarket
moneysupermarket.com
Commission: Yes Full Market: No
Visit Site →
Pros
  • 100+ insurers
  • Fast interface
  • Competitive prices
Excludes
  • Direct Line
  • Aviva
  • NFU Mutual
Verdict: The essential second comparison site. They show different exclusive deals to CTM and their interface is slightly faster.
8.7
3
GoCompare
gocompare.com
Commission: Yes Full Market: No
Visit Site →
Pros
  • Clearest policy details
  • Good for classic cars
  • 95+ insurers
Excludes
  • Direct Line
  • Aviva
  • NFU Mutual
Verdict: GoCompare has the most transparent policy detail presentation of any comparison site. Use as your third comparison after CTM and MSM.
8.2
🚗
Always compare at least 2 car insurance sites — the cheapest quote varies by site
No single comparison site shows all insurers. Compare the Market and MoneySupermarket together cover the vast majority of the market, but they show different exclusive deals. Running both typically takes under 10 minutes and consistently produces a lower quote than using one site alone. The saving is almost always worth the extra time.
OverCompare is independent and unsponsored. We do not accept payment for rankings. Premium data from ABI 2026. Always check policy details before purchasing — price is not the only consideration.
Head-to-head

Compare the Market vs MoneySupermarket vs GoCompare for car insurance

The three biggest UK car insurance comparison sites show different insurer panels and different exclusive deals. Direct comparison across the metrics that matter most for 2026 car insurance buyers:

FeatureCompare the MarketMoneySupermarketGoCompare
Insurers shown110+100+95+
Trustpilot score4.2 / 54.6 / 54.1 / 5
Telematics rangeWidestGoodGood
Young driver optionsStrongStrongLimited
Classic car optionsLimitedLimitedStrong
Policy detail clarityGoodGoodMost transparent
Multi-product discountMeerkat rewardsSome bundles—
OverCompare 2026 rank#1 (9.1)#2 (8.7)#3 (8.2)

Compare the Market vs MoneySupermarket for car insurance

Compare the Market shows roughly 10 more insurers than MoneySupermarket and surfaces the cheapest quote slightly more often, but MoneySupermarket has a higher Trustpilot score (4.6 vs 4.2) and a faster interface. The two sites also show different exclusive deals — running both takes under 10 minutes and typically lowers the cheapest headline quote by £50–£150.

Compare the Market vs GoCompare for car insurance

Compare the Market's wider panel (110+ vs 95+ insurers) usually wins on raw price. GoCompare's advantage is policy transparency — its interface makes excess, mileage limits and add-on costs more visible than CTM's. If understanding what you're buying matters more than shaving the last £20 off the headline price, start with GoCompare.

MoneySupermarket vs GoCompare for car insurance

MoneySupermarket is faster, cheaper on average and rated higher by users (4.6 vs 4.1 Trustpilot). GoCompare's only structural advantage is classic car and modified-vehicle insurance, where it consistently shows more specialist insurers than MoneySupermarket. For mainstream comprehensive cover, MoneySupermarket wins this head-to-head.