Chevrolet Camaro ZL1 Convertible Chevrolet proved that not all muscle cars are created equal when it unveiled the 580hp supercharged 6.2-litre V8 Camaro ZL1, the most powerful convertible ever made. If it lagged behind the Shelby Mustang GT500 in muscle, it more than made up for it in looks. Chevrolet has spend a great deal of work reinforcing the chassis so performance may get close to its hardtop sibling. Despite looking like it's destined for the drag strip, a Magnetic Ride Control system should mean it can corner properly too. The model is due on sale in late 2012 www.chevrolet.com

如果加州人想要驾驶更清洁、更经济的汽车，你就很难在今年的洛杉矶车展上说出来。经济合作组织远不是一个主导的主题；清洁和绿色在一个明显缺乏电动和混合动力汽车的展览中迷失了方向。如果说有什么不同的话，那就是那些速度更快、动力更强的肌肉车和异国情调吸引了人们的注意力，这代表着与洛杉矶车展(LA Auto Show)的创新和环保车型相比，这是一个明显的转变。

在一场老式的马力战斗中，通用汽车公司(General Motors)推出了其580马力增压6.2升的V8雪佛兰Camaro ZL1，它最强大的敞篷车；福特(Ford)展示了有史以来最强大的野马，650马力5.8升的V8福特谢尔比GT 500；捷豹(Jaguar)展示了其550马力XKR-S跑车的下拉版，这是其有史以来最强大的敞篷车。这可能并不微妙，但至少一些制造商已经做出了努力，使这种强大的野兽更省油。奔驰ML 63 AMG大，最野蛮的ML级SUV配备了效率改进，包括停止/启动技术(如新保时捷911和保时捷Panamera GTS)。

在其他地方，轻量级趋势并没有被完全抛弃，至少是这样。保时捷(Porsche)和斯巴鲁(Subaru)通过生产更高效的汽车-新的911和BRZ STI概念-展示了更智能的动力使用，这得益于对减重的关注，而不仅仅是增加马力。

总之，人们不禁认为，今年的洛杉矶车展缺乏一个主题。但是-如果我们被迫找到一辆车-我们可以这么说：当美国三大汽车巨头退回到传统的汽车舒适区时，这些汽车牢牢植根于过去的马力之战，而欧洲和亚洲展示的不仅是快速、愤怒、而且更负责任的汽车。或者-也许-底特律只是回到了它最擅长的地方？

Hot Wheels Chevrolet Camaro Remember the Hot Wheels cars from your childhood? Here's a full-size, grown-up special Hot Wheels version of the Chevrolet Camaro. Displayed on its own orange track, the concept was inspired by the 1:64-scale 'Custom Camaro' - one of the original '16' Hot Wheels cars released in 1968. To achieve the stirking paint job, GM worked with the Hot Wheels Design studio to create a new painting method by spraying liquid metal over primer before applying layer after layer of green tint. Sweet www.chevrolet.com

Cadillac XTS Cadillac's BMW 5-series rival the 2013 XTS certainly looks sharp. Cadillac is chasing younger buyers with its new luxury saloon, which will be available with an advanced Haldex all-wheel-drive system and powered by a twin-turbo 3.6-litre V-6 engine. The most technologically advanced car Cadillac has made, the XTS features the world's fastest-reacting suspension and an infotainment screen in the dash that uses proximity sensing and gesture recognition. It's just a shame it's not quite as elegant as Cadillac claim www.cadillac.com

Ford Shelby Mustang GT500 The most powerful production V8 in the world, Ford's 650hp 5.8-litre V8 200mph Shelby Mustang GT500 turned a lot of heads at the LA Auto show. The brand added a bigger, more-efficient supercharger to achieve that massive 650bhp, then improved the car's aerodynamics - to maximise downforce and minimize drag - by modifying the front fascia and splitters to keep the car firmly planted on the road. Six-piston caliper Brembo brakes were then added to ensure the new GT500 stops as well as it goes www.ford.com

Infiniti JX Crossover Powered by a 265bhp, 3.5-litre V6 engine, Infiniti's seven-passenger JX35 crossover sits between the FX and QX in the Infiniti lineup. With styling influenced by the Essence concept car, seen at the 2009 Geneva show, the JX35 has an unusual D-pillar, sloping roofline and "double-wave" hood. Technology includes a Backup Collision Intervention (BCI) system that enables the car to brake itself if a collision is sensed and an 'Around View Monitor', which can sense objects moving around the car. This should be pretty scary at night www.infiniti.com

Mercedes-Benz ML63 AMG Efficiency is acquiring an ever greater emphasis at AMG, Mercedes' in-house performance tuners, which means its new ML63 AMG SUV can also return decent fuel economy of 23.9mpg, a 28 per cent improvement in efficiency thanks to eco tweaks including an Eco start/stop system. Powered by an 525bhp AMG 5.5-litre V8 biturbo engine, 0 to 62mph can be reached in 4.8 seconds. Styling-wise the SUV looks clean and keen and offers cool, fast, family motoring www.mercedes-amg.com

Porsche 911 Carrera S Longer, lower, wider, lighter, faster, more powerful, cleaner and more economical, the third installment of Porsche's iconic 911 model, originally introduced in 1963, is certainly an improvement. The manual version has the world's first seven-speed manual transmission system, while the seven speed semi-automatic PDK system now changes gear faster. A new roll control system - called Porsche Dynamic Chassis Control (PDCC) - adjusts the car's stiffness to keep the wheels flat on the ground for faster cornering. The 400hp 3.8-litre flat six engine can accelerate the Carrera S from 0-62mph in a blistering 4.3 seconds www.porsche.com

Porsche Panamera GTS Proving again that Porsche will exploit every niche possible, the Panamera GTS slots in to the Panamera range above the 4S and below the Turbo and is the ninth iteration of the four-door supercar. Porsche claims the GTS will be the purist's Panamera, thanks to a 10mm lower suspension setup, upgraded brakes and 30hp more power over the 4S. Power from the 4.8-litre engine is 430hp, which translates to a 0 to 60mph time of 4.3 seconds, all of which should ensure the GTS is the most fun to drive www.porsche.com

Subaru BRZ Concept STI New Subaru models are few and far between so the BRZ Concept STI, a car that promises exemplary driving excitement, may just have been LA's car of the show. Developed in partnership with Toyota (whose car is codenamed FT-86, for now) the BRZ is Subaru's first rear-wheel-drive car since 1958. Powered by a non-turbocharged 2-litre flat four 'boxer' engine, the concept has a carbon fibre roof and wheels to reduce weight. Is this the prettiest Subaru ever? www.subaru.co.uk

Jaguar XKR-S sports convertible The fastest open top Jaguar of all time, the Jaguar XKR-S is no wobbly droptop. Jaguar's engineers have focused their efforts on ensuring the body is light, stiff and aerodynamic. The new front bumper design has a bigger air intake, while a carbon fibre splitter, new sills and rear spoiler smooth airflow. The result is a Jag that can accelerate from 0 to 60mph in 4.2 seconds. But the roof takes a more pedestrian 18 seconds to close. www.jaguar.com

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