The more sporty Kei Cars and performance oriented JDMs have long used smaller engines combined with turbos, and for the power they produce they've always been quite efficient. It's time to turbo all cars in our view. Among other adjustments that could help double fuel economy are turbocharging with smaller, more efficient engines that produce the same level of power. ================================= jdm, engines, turbos, environmentthe, sporty, kei, oriented, jdms, combined, ve, efficient, turbo, adjustments, economy, turbocharging, reduce, pollution, existing, hydrogen, hybrids, refinements, combustion, aerodynamics, drivetrains, tires, emissions, mileage, carolyn, whelan, oas_ad, improving, efficiency, greenhouse, global, fleet, istockphoto, aarticleimages, array, caption, url, alt, src, inline, pollution_, jpg, thisimagenumber, atools_holder, dd, px, width, text, align, margin, moz, atools, padding, img, display, fff, atools_sponsor, span, font, verdana, arial, helvetica, sans, serif, var, newurl, href, za, z, _, ec, sc, codes, pagination, articles, mailarticle, feature, newtitle, digg_url, stumble_url, projected, carbon, dioxide, gigatons, vehicles, affordable, chassis, unveiled, geneva, motor, switzerland, challenges, auto, makers, autos, gallon, kilometers, liter, mpg, kpl, modifications, ndash, idle, shuts, resistance, thus, reducing, friction, variable, valve, increases, consumption, displays, encourage, eco, toyota, prius, averages, downhill, drivers, impacts, advanced, cooling, reuse, produced, reduction, broader, conditioners, transmissions, lighting, devices, headlights, increased, electrification, hybridization, regenerative, mdash, currently, quot, evs, lew, fulton, specialist, iea, issued, environmental, programme, forum, itf, fia, promotes, sustainable, mobility, funds, speeding, uptake, technologies, relatively, consortium, rsquo, analysis, studies, engineers, aston, birmingham, massachusetts, institute, organizations, suggests, barrels, radical, r