Attendees at Beijing's auto show examine the SU7, the first EV made by Chinese smartphone company Xiaomi.
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- China's EV makers are packing their vehicles with high-tech extras in an attempt to woo customers.
- Auto execs and experts say Chinese customers want their cars to be more "intelligent."
- The likes of BYD and Xiaomi are doubling down on autonomous driving and smart features in response.
China's legion of EV companies are facing an increasingly brutal fight for customers ...