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Test Car Information:

2014 Acur RLX with Navigation
3.5L naturally aspirated i-VTEC V6 with Variable Cylinder Management™ (VCM®), 310 hp @ 6,500 RPM, 272 lb-ft @ 4,500 RPM
6-speed automatic transmission, front-wheel-drive
MSRP as tested: $51,845 (including $895 S&H)

Review Index

2014 Acura RLX – Part 1 (Exterior)
2014 Acura RLX – Part 2 (Interior)
2014 Acura RLX – Part 3 (Electronic Features, Controls)
2014 Acura RLX – Part 4 (Powertrain)
2014 Acura RLX – Part 5 (Chassis)

Luxury sedans which are around the $50,000 mark are typically battle fields among candidates such as the Lexus GS, Infiniti Q70, BMW 5-series, Mercedes-Benz E-class and Audi A6...

Following our first report about the new C63 AMG yesterday, today comes more details about the US-spec models.

First, please note that the official new name for the C63 AMG is: Mercedes-AMG C63. Below are latest summary of US-spec C63:

– Powered by the M177 4.0L twin-turbocharged V8 engine
– 7-speed AMG Speedshift transmission
– C63: 469hp @ 5,500 – 6,250 rpm, 479 lb-ft of torque @ 1,750 – 4,500 RPM; 0-60mph: 4.0 seconds
– C63 S: 503hp @ 5,500 – 6,250 rpm, 516 lb-ft of torque @ 1,750 – 4,500 rpm; 0-60mph: 3.9 seconds
– Standard tire size: 245/40 R18 (front); 265/40 R18 (rear); optional size: 245/35 R 19 (front) and 265/35 R 19 (rear)
– C63 standard options: clutch type LS...

Today Mercedes-Benz unveiled some detailed information regarding the newly redeisgned C-Class sedan AMG variant: the C63 AMG. Below are some highlights:

– All C63 AMG models will be powered by the M177 4.0L twin-turbocharged V8 engine
– 7-speed AMG Speedshift transmission
– C63 AMG: 475hp, 479 lb-ft of torque; 0-100kmh (0-62mph): 4.2 seconds
– C63 AMG S: 510hp, 515 lb-ft of torque; 0-100kmh (0-62mph): 4.1 seconds
– Tire size: 245/40/R18 (front); 265/40/R18 (rear)
– C63 AMG standard options: AMG Ride Control sports suspension w/3-stage adjustable shocks; AMG speed-sensitive sports steering system; internally ventilated and perforated brake discs (size: 360mm/330mm – front/...

Today, Motor Trend released its road test numbers of the production version 2015 RC-F (the one previously published by MT is the test of a pre-production prototype). Key performance results are:

– 0-60 mph: 4.3s
– 1/4 miles: 12.7s @ 112.2mph

The result is slightly worse than its German competitors such as the BMW M4, Audi RS5 (the new Mercedes-Benz W205 C-coupe AMG has not arrived yet). The reason is because the heavier weight of the RC-F, which exceeds 4,000 lbs.

Compared to the German luxury brands, what Lexus currently lacks behind is the use of high-strength light-weight advanced material in the car body construction...

Review Index

2014 Toyota Corolla LE – Part 1 (Exterior)
2014 Toyota Corolla LE – Part 2 (Interior)
2014 Toyota Corolla LE – Part 3 (Interior – Electronic Features)
2014 Toyota Corolla LE – Part 4 (Powertrain)
2014 Toyota Corolla LE – Part 5 Chassis and Suspension)

The latest Corolla has independent MacPherson strut front suspension, and its rear suspension is the torsion beam type. The MacPherson suspension is familiar to many people; and the torsion beam is not something that we can brag about. You can see the Corolla’s torsion beam in the rear suspension from the below photo.

The torsion beam is not a fully independent suspension, its advantage is simple cons...