Hertz vs Sixt:Which is more popular?
In September 2026, Hertz had more branded searches than Sixt among car rental companies in Australia. Hertz had about 74,000 branded searches, while Sixt had 60,500. Hertz made up 21.2% of all car rental company searches we track, and Sixt accounted for 17.3%. When we asked ChatGPT and Google AI Overviews about car rental companies, Sixt appeared in all five answers and Hertz in four. Sixt was mentioned before Hertz in three out of five answers.
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Top car rental companies in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Sixt appeared in all five answers. Hertz was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Sixt was listed before Hertz in three out of five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Sixt5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Budget5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
East Coast Car Rentals5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Hertz4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Avis4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Europcar2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Thrifty1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about car rental companies
5 answers
Asked ChatGPT
“Which car rental company should I use in Australia?”
Asked ChatGPT
“What are the best car hire companies in Australia?”
Asked ChatGPT
“What's the cheapest car hire company at Australian airports?”
Searched Google, AI Overview
“car rental”
Searched Google, AI Overview
“car hire”
Brands are shown in the order each answer named them. The survey took place in Australia on October 22, 2026.
Is Hertz or Sixt more popular in search?
This chart shows how often people search Google for Hertz and Sixt by name. Each line represents a brand's share of searches for all seven car rental companies we track, month by month, from searches in Australia.
Share of searches by month for Hertz, Sixt. The figures are in the table below the chart.
View monthly share of searches table
| Month | Hertz | Europcar | Sixt | Avis | Budget | East Coast Car Rentals | Thrifty |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 37.1% | 13.6% | 13.6% | 13.6% | 11.1% | 6.1% | 5% |
| Nov 2025 | 36.2% | 13.3% | 13.3% | 13.3% | 13.3% | 5.9% | 4.9% |
| Dec 2025 | 36.6% | 13.4% | 13.4% | 11% | 13.4% | 7.3% | 4.9% |
| Jan 2026 | 33.7% | 15.1% | 15.1% | 12.4% | 12.4% | 6.8% | 4.5% |
| Feb 2026 | 35.4% | 15.9% | 13% | 13% | 13% | 5.8% | 3.9% |
| Mar 2026 | 34.7% | 12.7% | 12.7% | 15.6% | 12.7% | 7% | 4.7% |
| Apr 2026 | 32.4% | 14.5% | 14.5% | 11.9% | 14.5% | 7.9% | 4.3% |
| May 2026 | 32% | 14.4% | 14.4% | 14.4% | 11.7% | 7.9% | 5.3% |
| Jun 2026 | 29% | 16% | 16% | 13.1% | 13.1% | 7.1% | 5.9% |
| Jul 2026 | 25.2% | 16.8% | 16.8% | 13.8% | 13.8% | 7.5% | 6.2% |
| Aug 2026 | 23.7% | 15.8% | 15.8% | 15.8% | 15.8% | 7.1% | 5.8% |
| Sep 2026 | 21.2% | 17.3% | 17.3% | 14.2% | 14.2% | 9.5% | 6.4% |
How has the Hertz and Sixt comparison changed over the last 12 months?
3 findings
- Hertz was ahead of Sixt in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Hertz’s share of searches among car rental companies in Australia moved from 37.1% to 21.2%, and its estimated monthly branded searches moved from 165K to 74K.
- Across the 12 months ending September 2026, Sixt’s share of searches among car rental companies in Australia moved from 13.6% to 17.3%, and its estimated monthly branded searches held steady at 60.5K.
How did search popularity change for Australia car rental companies in September 2026?
2 changes
In September 2026, Sixt overtook Avis and Budget to rank 3rd among car rental companies in Australia, with 17.3% of the searches.
In September 2026, Hertz lost share of searches among car rental companies in Australia, from 23.7% to 21.2%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Hertz’s and Sixt’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.
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