Brandwave

Car rental companies in Australia:Which are most popular?

In September 2026, Hertz was the most searched car rental company in Australia, accounting for 21.2% of all searches among the seven companies we track. When we checked with ChatGPT and Google AI Overviews, Sixt, Budget and East Coast Car Rentals showed up in every answer. Sixt was recommended most often, though no response put it first.

Search and AI answers in September 2026
  1. HertzShare of searches 21.2%Mentioned in 4 of 5 AI answersPlace in AI recommendations 5th
  2. EuropcarShare of searches 17.3%Mentioned in 2 of 5 AI answersPlace in AI recommendations 6th
  3. SixtShare of searches 17.3%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st
  4. AvisShare of searches 14.2%Mentioned in 4 of 5 AI answersPlace in AI recommendations 3rd
  5. BudgetShare of searches 14.2%Mentioned in 5 of 5 AI answersPlace in AI recommendations 2nd

+2 more

Follow car rental companies and get free monthly updates on what changed

By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy

Track your brand in this set →

Top car rental companies in ChatGPT and Google AI Overviews

In Brandwave's three ChatGPT questions and two Google AI Overviews, Sixt, Budget and East Coast Car Rentals appeared every time. Sixt was recommended most often, though no answer put it first. Budget was second, and Avis was third.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Sixt1st
  2. Budget2nd
  3. Avis3rd
  4. East Coast Car Rentals4th
  5. Hertz5th
  6. Europcar6th
  7. Thrifty7th

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

Brands are shown in the order each answer named them. The survey took place in Australia on October 22, 2026.

How the Brand Demand Index is measured

Creator with pink hair and a pink jacket

See your own brand in this picture

Brandwave tracks your branded demand next to your campaigns, spend and outcomes, so you can see what moved your numbers, not just that they moved.