Ears because the two large - diameter tailpipes play a spine - tingling tune above 4000 rpm in Sport mode and throughout the entire rev range in Race. (automobilemag.com)
Analyze the fuel consumption curve across the entire rev range of the new SKYACTIV - X engine and we can see why: (automobilemag.com)
The power - to - weight ratios may be similar, but the S4 is a full league quicker and faster than the TL thanks to the additional torque across the entire rev range. (automobilemag.com)