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Case Study

Auto Trader drives cross-device awareness with Quantcast audio

Auto Trader drives cross-device awareness with Quantcast audio
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“Quancast has been a key partner for us for 5 years and has helped us to bring programmatic activations to the forefront of our brand marketing. Quantcast is one of our most progressive partners and always brings us on the journey with them for new product launches and testing.”

Grace Bailey, Senior Digital Marketing Manager, Auto Trader

94%↑

Listen-through rate

Auto Trader is the largest digital automotive marketplace for car buyers and sellers.

Industry

Automotive

Brand

Auto Trader

Product

Audio, Quantcast Advertising Platform

Challenge

Auto Trader, the UK’s leading digital automotive marketplace, sought to expand awareness by reaching consumers across a wider range of devices and channels. Their objective was to extend the reach of their existing video campaign into fresh audio supply streams.

Solution

Quantcast executed a cross-device audio campaign across premium streaming environments. By tapping into a broad range of platforms—including Spotify, Spreaker, DAX and Audioboom—Quantcast delivered high-quality impressions to engaged audiences throughout their day. The campaign was optimized in real time using Quantcast’s live data and AI-driven insights, ensuring efficient delivery and consistent performance across all audio channels.

Results

Auto Trader saw strong performance results that matched or exceeded those from direct audio campaigns, validating Quantcast Audio as an effective extension of their omnichannel strategy:

  • 94% listen-through rate (LTR) with a high-volume of completed listens, proving the strength of audience engagement and ad relevance
  • Reached a large and diverse audience, engaging hundreds of thousands of devices and households across multiple platforms
  • Achieved efficient cost performance, with a competitive CPM and exceptionally low cost per listen, delivering strong value at scale
  • Expanded reach to new audiences while reinforcing brand presence across both audio and video
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