Q. Q.  Why can't they make a tire with rubber that self heals and is of comparable strength to conventional rubber, thus ending the hassle of changing a flat tire? -- J.K. (via Internet) 

A. Researchers in Germany have found a new way to make self-healing rubber that is of comparable strength to conventional rubber, according to a report in the Wall Street Journal. 

Q. What are the five best new cars for teens? -- E.G. (via Internet)

A. They are the Scion iM, Ford Focus, Kia Forte, Volkswagen Golf (gas engine) and Mazda3, says The Boldride Daily. I agree. These cars are peppy, economical, reliable, safe and fun to drive.

Q. What is the best-looking Ferrari ever built? -- A.J. (via Internet)

A. That's a tough question, considering all the highly talented stylists who have come up with Ferrari bodies. However, the breathtaking 1962 Ferrari 250 GT SWB Berlinetta Speciale is among the best-looking Ferraris. Only one was built, using a Ferrari GT SWB (short-wheelbase) chassis from Ferrari and styled by Italy's highly respected Bertone coachbuilder's genius stylist Giorgetto Giugiaro. Remarkably, Giugiaro was still in his early 20s. His design paid tribute to Ferrari's race cars by dividing the grille area into two sections via a protrusion referred to as a Sharknose, although the rest of the car was unique. This auto was designed for Giugiaro's boss, Nuccio Bertone. Famous in Ferrari collector car circles, the  car sold for $16.5 million at Gooding and Company's Pebble Beach Auction in August, 2015. 

Q. Would you buy a Volkswagen with a diesel engine? -- G.S. (via Internet)

A. VW diesels are really good cars, and you likely can get one at an appreciably reduced price. Ignore the "greenies," television talking heads and self-serving politicians elbowing each other for TV time concerning VW's diesel emissions issue.

Q. What do you hear about the new Chevrolet Volt? -- F.K.  (via Internet)

A. I hear it's a big improvement over the current model, and I'm looking forward to driving it. 

Q. What was the best American taxi ever made? -- N.M. (via Internet)
A. The discontinued four-door Checker Marathon. I read where they're planning to bring it back, but at least not initially in its classic four-door form.

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