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Josh Miller/CNET

12 must-see videos from the Frankfurt auto show

This year's International Motor Show in Frankfurt was packed with sexy concepts and production models as well as a few fun surprises along the way.

Josh Miller/CNET

Our coverage of the 2013 Frankfurt auto show is just about wrapping up. Some of the highlights included the 2014 Porsche 918 Spyder making a brilliant, record-breaking debut, BMW bringing back some serious sporty intentions with the 4 Series, and Nissan unveiling one of its newest concepts, a smartwatch. And while cars, both production and concept, were the obvious main attraction, nothing could prepare us for Smart's electric bicycle.

Join us on a video tour of some of the hottest sights from the show.

Now playing: Watch this: 2014 Porsche 918 Spyder

1. 2014 Porsche 918 Spyder

A high-tech Porsche hybrid like no other debuts with a new world record.

Now playing: Watch this: Take a ride on the Smart Electric Bike

2. Take a ride on the Smart Electric Bike

The 2013 Frankfurt auto show is filled with cars, both production and concept, but nothing could prepare us for Smart's electric bicycle. CNET's Antuan Goodwin takes it for a spin and tells us why this could indeed be a smart way to travel.

Now playing: Watch this: BMW 4 Series

3. BMW 4 Series

Realizing the current 3 Series line has lost some of the sporty qualities that made it such a popular model, BMW debuts the 4 Series, kicking the 3 Series up a notch by giving it a powerful motor and some Audi-inspired tech as well.

Now playing: Watch this: Jaguar C-X17 concept

4. Jaguar C-X17 concept

At the 2013 Frankfurt auto show, Jaguar unveiled its crossover concept called the Jaguar C-X17, which gives us several nods to the current crop of Jaguars, including the F-Type.

Now playing: Watch this: Nissan Smartwatch

5. Nissan Nismo smartwatch

At the 2013 Frankfurt auto show, Nissan unveiled its newest concept, and it wasn't a car. The Nismo smartwatch interacts with your Nismo vehicle, giving you speed and fuel consumption data and directions while also monitoring your heart rate and possibly your mood.

Now playing: Watch this: Volvo Concept C coupe

6. Volvo Concept C coupe

Volvo hasn't made a sporty vehicle in a while so it was a surprise to see the company unveil one at the 2013 Frankfurt auto show, albeit a concept only, but CNET's Wayne Cunningham hopes this is a view into Volvo's future car designs.

Now playing: Watch this: Audi Quattro concepts

7. Audi Quattro concepts

At the 2013 Frankfurt auto show, Audi unveiled not one but two Quattro concepts that were very different in power trains and styling but were also previews of what future Audi models will look like.

Now playing: Watch this: Volkswagen Golf-R

8. Volkswagen Golf-R

CNET's Antuan Goodwin gives us his take on the all-new Volkswagen Golf-R at the 2013 Frankfurt auto show. Although not entirely new on the outside, inside the Golf-R runs on VW's latest engine technology and the 4Motion system for braking.

Now playing: Watch this: Infiniti Q30 Concept

9. Infiniti Q30 Concept

An Infiniti hatchback-crossover-coupe mashup that might just fly.

Now playing: Watch this: Mercedes-Benz Concept S-Class Coupe

10. Mercedes-Benz Concept S-Class Coupe

Mercedes-Benz rolled out this concept at the 2013 Frankfurt auto show: the Concept S-Class Coupe. CNET's Wayne Cunningham gives us a first look and shows you how the company is using Gracenote to set the music you have in the car to reflect certain types of moods.

Now playing: Watch this: Toyota Yaris Hybrid-R concept

11. Toyota Yaris Hybrid-R concept

It's a 420-horsepower hybrid and unfortunately for CNET's Antuan Goodwin it's only a concept. Take a look at the Toyota Yaris Hybrid-R concept at the 2013 Frankfurt auto show.

Now playing: Watch this: 2014 Nissan X-Trail/Rogue

12. 2014 Nissan X-Trail/Rogue

The Rogue gets globalized and another row of seats.