Valco Hylomar Gasket Sealer 1.50 Oz Tube P/n 71255 on 2040-parts.com

Carlsson improves upon the Mercedes SL63 AMG

Not happy with only 518 hp and a 4.5-second 0-to-60-mph time from your shiny new Mercedes-Benz SL63 AMG? Lucky for you, the German tuners from Carlsson are now offering performance-upgrade kits in the United States. Through GGI European Tuning in Miami--the exclusive North American importer of Carlsson parts--SL63 owners can massage their rides to churn out 600 hp and 520 lb-ft of torque and to handle better than stock.

More audio, mileage for the 2011 Honda Accord

Honda's updated 2011 Accord sedan and coupe will hit dealerships in mid-August. The Accord gets a refresh inside and out, a new leather-equipped Special Edition model and a handful of other interior upgrades. Fuel-economy improvements--a result of improved aerodynamics, less engine friction and new gear ratios--mean 34 mpg on the highway for the four-cylinder and 30 mpg for the V6.

Classic vs. Modern, Part One: Porsche 911 Carrera 3.2 or 2012 Kia Rio SX

A recent 220-volt shock administered by the $23K-plus window sticker of a loaded Ford Fiesta rental car made me think about what the same dollars would buy in a classic car, and what the relative cost of ownership would be. My favorite matchup doesn't even require as much coin as said fully accessorized rental Fiesta. The 2012 Kia Rio SX carries an as-tested-by-Autoweek price of $20,745.