2005 BMW 545i vs. 2005 Cadillac STS V8 vs. 2006 Infiniti M45 Sport vs. 2005 Mercedes-Benz E500

Road Test: 2005 BMW 545i vs. 2005 Cadillac STS V8 vs. 2006 Infiniti M45 Sport vs. 2...

Road Test: 2005 BMW 545i vs. 2005 Cadillac STS V8 vs. 2006 Infiniti M45 Sport vs. 2005 Mercedes-Benz E500

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	2006 Infiniti M45 Sport	2005 Mercedes-Benz E500
Powertrain/Chassis
Drivetrain layout	Front engine, RWD	Front engine, RWD
Engine type	V-8, alum block/heads	V-8, alum block/heads
Valvetrain	DOHC, 4 valves/cyl	SOHC, 3 valves/cyl
Displacement	274.3 cu in / 4494 cc	303.0 cu in / 4966 cc
Compression ratio	10.5:1 1	0.0:1
Power (SAE net)	335 hp @ 6400 rpm	302 hp @ 5600 rpm
Torque (SAE net)	340 lb-ft @ 4000 rpm	339 lb-ft @ 2700 rpm
Specific output	74.5 hp/liter	60.8 hp/liter
Redline	6700 rpm	6000 rpm
Weight to power	12.1 lb/hp	13.0 lb/hp
Transmission	5-speed automatic	7-speed automatic
Axle/final drive ratios	3.36:1 / 2.80:1	2.65:1 / 1.93:1
Suspension, front; rear	Control arms, coil springs, anti-roll bar; multilink, coil springs, anti-roll bar	Multilink, air springs, adj shocks, anti-roll bar; multilink, air springs, adj shocks, anti-roll bar
Steering Ratio	16.4:1	16.3:1
Turns lock-t0-lock	3.0	2.8
Brakes, f;r	12.6-in vented disc; 12.1-in vented disc, ABS	13.0-in vented disc; 11.8-in vented disc, ABS
Wheels	19 x 8.5, cast alloy	17 x 8.0, cast alloy
Tires, f;r	245/40R19 94W; 245/40R19 94W Bridgestone Potenza RE050A	245/45R17 95H; 245/45R17 95H Michelin Pilot MXM4
Dimensions
Wheelbase	114.2 in	112.4 in
Track, f/r	60.2 / 60.8 in	61.4 / 61.1 in
Length x Width x Height	192.6 x 70.8 x 59.5 in	189.7 x 71.3 x 57.2 in
Turning circle	36.7 ft	37.4 ft
Curb weight	4048 lb	3923 lb
Weight distribution	54 / 46 %	52 / 48 %
Seating capacity	5	5
Headroom, f/r	39.6 / 37.8 in	37.4 / 37.7 in
Legroom, f/r	44.2 / 37.3 in	41.9 / 35.6 in
Shoulder room, f/r	58.2 / 56.9 inv 56.4 / 56.1 in
Cargo Volume	14.9 cu ft	15.9 cu ft
Test Data Acceleration to mph
0-30	2.1 sec	2.1 sec
0-40	3.1	3.1
0-50	4.4	4.2
0-60	5.8	5.7
0-70	7.7	7.3
0-80	9.8	9.3
0-90	12.0	11.7
0-100	15.4	13.9
PASSING, 45-65 MPH	2.9 sec	2.8 sec
Quarter Mile	14.1 sec @ 99.0 mph	14.0 sec @ 100.6 mph
Braking, 60-0 mph	115 ft	121 ft
600-foot slalom	65.6 mph avg	63.6 mph avg
Lateral acceleration	0.84 g avg	0.81 g avg
MT Figure Eight	26.8 sec @ 0.66 g avg	27.0 sec @ 0.64 g avg
Top-gear revs @ 60 mph	2400 rpm	1600 rpm
Consumer Info
Base price	$50,360	$58,520
Price as tested	$56,260	$63,910
Stability/traction control	Yes/yes	Yes/yes
Airbags	Dual front, front side, f/r curtain	Dual front, f/r side, f/r curtain
Basic warranty	4 yrs / 60,000 miles	4 yrs / 50,000 miles
Powertrain warranty	6 yrs / 70,000 miles	4 yrs / 50,000 miles
Roadside assist period	4 yrs / 60,000 miles	Vehicle life
Fuel capacity	20.0 gal	21.1 gal
EPA city/hwy fuel econ	17 / 23 mpg	17 / 25 mpg
Recommended fuel	Unleaded premium	Unleaded premium