Another talking point is the difference in sounds of the cars. Both have the same diesel engine and hence sound the same during the bulk of the lap. The e-tron has a few different sounds when the hybrid system is activated at over a 120km/h and under breaking when the regenerative cycle of the system comes into effect. The e-tron has a “whirling” whistle type sound during these instances. One could almost describe the hybrid system as sounding like a “spaceship”.
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