Audi has revealed its new, second generation A5 and S5 Sportback. The A5 continues to mix a coupé design with family car functionality but is built on a new platform and now features even more tightly wrought lines. Power comes from a choice of two petrol and three diesel engines with fuel consumption reduced by up to 22 percent. The new flagship S5 is 85kg lighter than its predecessor and features sporty styling additions finished in matt grey. The S5 is powered by a V6 turbo engine with 500Nm of torque for a 0 to 62mph in 4.7 seconds and a limited top speed of 155mph.