Reddit Is Gemini's Top Source for Car Questions at 14.7% vs 0.3% on ChatGPT

    Reddit appears in 14.7% of Gemini's sourced answers to car questions, more than any other website, against 0.3% of ChatGPT's. ChatGPT's top car source is Consumer Reports, which Gemini never cites, and no website reaches 7% of all sourced answers.

    ChatGPT
    Answers with no source
    2.3%
    Share of sourced answers citing it
    10%

    Source: Suff Digital analysis of 780 AI answers to 195 car questions · ChatGPT and Gemini, September 2026

    All answers by rank
    1
    6.7%
    2
    6.2%
    3
    5.7%
    4
    5%
    5
    4.8%
    6
    4.4%
    7
    3.7%
    8
    3.7%
    9
    3.5%
    10
    3.2%
    11
    3%
    12
    3%
    13
    2.7%
    14
    2.7%
    15
    2.7%

    Source: Suff Digital analysis of 780 AI answers to 195 car questions · ChatGPT and Gemini, September 2026

    Share of sourced answers by industry
    Legal
    14.7%
    Health
    32.3%
    Money
    13.8%
    Real estate
    27.2%
    Home improvement
    11.8%
    Travel
    13.2%
    Cars
    6.7%
    Software
    24.3%
    College
    13.1%
    Fitness
    41.5%
    Pets
    18.4%
    Recipes
    37.5%

    Source: Suff Digital analysis of 780 AI answers to 195 car questions · ChatGPT and Gemini, September 2026

    Source: Reddit Is Gemini's Top Source for Car Questions at 14.7% vs 0.3% on ChatGPT - Suff Digital