Audi S1 makes rallycross debut - Racecar Engineering
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Audi Rally Cars: A History - Influx Magazine
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A World Rallycross Adventure - Speedhunters
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Hoonigan launches Ken Block's ELECTRIKHANA TWO: One More Playground; Mexico City in the Audi S1 Hoonitron
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World Rallycross: why Mattias Ekstrom is hooked
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RX: Munnich to switch focus on World Rallycross with Audi, World Rally
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3,637 S1 Stock Photos, High-Res Pictures, and Images - Getty Images
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Audi S1 makes rallycross debut - Racecar Engineering
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A World Rallycross Adventure - Speedhunters
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600HP Audi S1 EKS RX Quattro Rallycross Car! - Mattias Ekström at Rally Legend 2019!