Sixt vs Zest Car Rental:Which is more popular?
In September 2026, Sixt had more branded searches than Zest Car Rental among car hire companies in the United Kingdom. Sixt had about 60,500 branded searches, while Zest Car Rental had 18,100. Sixt made up 14% of all car hire company searches we track, and Zest Car Rental accounted for 4.2%. When we asked ChatGPT and Google AI Overviews about car hire companies, Zest Car Rental appeared in three of the four answers and Sixt in two. Sixt and Zest Car Rental were each mentioned first in two of the four answers.
Who do people search for more?
Sixt, about 3 searches for every 1 for Zest Car Rental
Who does AI mention more?
Zest Car Rental, mentioned in 3 of 4 answers, Sixt in 2
Who does AI recommend more?
Each is named first in 2 of 4 answers.
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Top car hire companies in ChatGPT and Google AI Overviews
In three ChatGPT questions and one Google AI Overview, Zest Car Rental was mentioned in three out of four: in all three ChatGPT answers, but not in the Google AI Overview. Sixt was mentioned in two out of four: in one of the three ChatGPT answers and in the Google AI Overview. Sixt and Zest Car Rental were each listed first in two of the four answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Arnold Clark1st
Enterprise Rent-A-Car2nd- Zest Car Rental3rd
Drivalia4th
Green Motion5th
Hertz6th
Avis7th- Sixt8th
Europcar9th
Budget10th- +1 more
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Arnold Clark4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- Enterprise Rent-A-Car3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- Zest Car Rental3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Europcar2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Sixt2 of 4Named in 1 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- Avis2 of 4Named in 1 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- Hertz2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Drivalia1 of 4Named in 1 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Green Motion1 of 4Named in 1 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Budget1 of 4Named in 0 of 3 ChatGPT answersNamed in 1 of 1 Google answers
See every answer about car hire companies
4 answers
Asked ChatGPT
“What's the best car hire company in the UK?”
Asked ChatGPT
“Which car hire company should I use at a UK airport?”
Asked ChatGPT
“Who has the cheapest car hire in the UK?”
Searched Google, AI Overview
“car hire”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in United Kingdom on October 27, 2026.
Is Sixt or Zest Car Rental more popular in search?
This chart shows how often people search Google for Sixt and Zest Car Rental by name. Each line represents a brand's share of searches for all 11 car hire companies we track, month by month, from searches in United Kingdom.
Share of searches by month for Sixt, Zest Car Rental. The figures are in the table below the chart.
View monthly share of searches table
| Month | Enterprise Rent-A-Car | Europcar | Sixt | Avis | Hertz | Zest Car Rental | Drivalia | Green Motion | Thrifty | Arnold Clark | Budget |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 39% | 20.7% | 11.3% | 11.3% | 5.1% | 3.4% | 2.8% | 1.9% | 2.3% | 1.5% | 0.66% |
| Nov 2025 | 42.6% | 18.5% | 12.4% | 10.1% | 4.6% | 2.5% | 3% | 2% | 2% | 1.4% | 0.9% |
| Dec 2025 | 41.9% | 18.2% | 14.9% | 9.9% | 3.9% | 2.4% | 2.4% | 2% | 2% | 1.6% | 0.88% |
| Jan 2026 | 35.6% | 18.9% | 15.4% | 12.6% | 5.2% | 3.8% | 2.5% | 1.7% | 2.1% | 1.4% | 0.92% |
| Feb 2026 | 36.4% | 20.7% | 13.8% | 11.3% | 4.8% | 4.1% | 2.8% | 1.5% | 2.3% | 1.5% | 0.82% |
| Mar 2026 | 33.1% | 17.6% | 14.4% | 17.6% | 5% | 3.5% | 2.9% | 1.6% | 1.9% | 1.6% | 0.86% |
| Apr 2026 | 32.8% | 19.7% | 16.1% | 13.2% | 5.3% | 3.9% | 2.6% | 1.8% | 2.2% | 1.8% | 0.63% |
| May 2026 | 32.8% | 21.9% | 14.8% | 12.1% | 5.3% | 4.4% | 2.4% | 2% | 2% | 1.6% | 0.72% |
| Jun 2026 | 31.7% | 21.2% | 17.4% | 11.7% | 5.6% | 4.3% | 2.3% | 1.9% | 1.9% | 1.3% | 0.69% |
| Jul 2026 | 33.5% | 20% | 16.5% | 11% | 6.1% | 4.9% | 2.2% | 1.8% | 1.8% | 1.5% | 0.66% |
| Aug 2026 | 35.9% | 19.7% | 16.2% | 10.8% | 6% | 4% | 2.2% | 1.8% | 1.8% | 1.2% | 0.64% |
| Sep 2026 | 38.2% | 17.2% | 14% | 11.5% | 6.5% | 4.2% | 2.3% | 1.9% | 1.9% | 1.5% | 0.84% |
How has the Sixt and Zest Car Rental comparison changed over the last 12 months?
3 findings
- Sixt was ahead of Zest Car Rental in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Sixt’s share of searches among car hire companies in the United Kingdom moved from 11.3% to 14%, and its estimated monthly branded searches moved from 49.5K to 60.5K.
- Across the 12 months ending September 2026, Zest Car Rental’s share of searches among car hire companies in the United Kingdom moved from 3.4% to 4.2%, and its estimated monthly branded searches moved from 14.8K to 18.1K.
How did search popularity change for United Kingdom car hire companies in September 2026?
2 changes
In September 2026, Sixt lost share of searches among car hire companies in the United Kingdom, from 16.2% to 14%.
Estimated monthly branded searches for Zest Car Rental in the United Kingdom rose 22.3% over 12 measured months, from 14.8K to 18.1K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Sixt’s and Zest Car Rental’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Sixt
1 branded search term
- sixt
Zest Car Rental
1 branded search term
- zest car rental
Other head-to-heads among car hire companies
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