These days, it isn't enough for a drool-worthy hyper-vehicle just to be able to scorch off the mark.
Frankfurt showed us such cars now have to offer the expected ridiculous punch in performance but without leaving a nasty bruise on the planet in doing so.
BMW arguably made the biggest super-friendly supercar splash with the debut of its production- ready i8. The company calls the plug-in hybrid "the world's most forward-looking sportscar". It combines a 1.5-litre turbo engine powering the rear wheels and an electric motor powering the front wheels, with a total output of 266kW and 570Nm of torque.
That will sling the i8 to 100km/h from a standing start in just 4.4 seconds and yet it still has a combined fuel consumption of just 2.5L/100km.
Porsche used the event to announce its future will be focused on electric and hybrid technologies. If ever there was a glowing endorsement of such an approach, it would be the 918 Spyder.
Not only a stunning looker, it uses a 4.6-litre V8 with two electric motors to produce a terrifying 652kW and up to 1280Nm.
How much is that? Start it up and put your foot down and you'll be doing 100 clicks an hour in just 2.8 seconds. Keep it planted and you'll be doing 200 in 7.7 seconds and 300 in 22 seconds.
And yet, it can use as little as 3.3L/100km - a similar figure to the most frugal hatchbacks.
Audi had a big show and the German manufacturer's headline acts were its Quattro Sport and Nanuk Quattro performance concepts.
The Quattro Sport echoes the trend of marrying ferocious with friendly. The hybrid offers 515kW and 800Nm from its tandem 4.0-litre twin-turbo V8 and electric motors, while sipping a restrained 2.5L/100km. It looks very much like a production car but Audi says it is still concept-only at this stage.
These days, one generally knows what cars to expect at shows such as this. However, the Nanuk was one of the few genuine surprises in Frankfurt.
An elevated performance beast which looks like a cross between a Lamborghini and a 1970s muscle car, the Nanuk is a nod to the original high-riding Audi Quattro from the 1980s.
Despite its striking looks, the Nanuk's key trait is arguably under the bonnet: a new 5.0-litre V10 turbo-diesel engine delivering 400kW and 100Nm.
Audi chief executive Rupert Stadler said it was unlikely the Nanuk would go into production but wouldn't rule it out.
Elsewhere, there was the typical car porn.As previously reported, the Ferrari 458 Speciale drew a big crowd, Mercedes showed off its awesome Concept S-Class Coupe and Volvo overcame its rather staid reputation with the downright sexy Coupe Concept.