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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	2005 BMW 545i	2005 Cadillac STS V8
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	DOHC, 4 valves/cyl
Displacement	268.4 cu in / 4398 cc	278.6 cu in / 4565 cc
Compression ratio	10.5:1	10.5:1
Power (SAE net)	325 hp @ 6100 rpm	320 hp @ 6400 rpm
Torque (SAE net)	330 lb-ft @ 3600 rpm	315 lb-ft @ 4400 rpm
Specific output	73.9 hp/liter	70.1 hp/liter
Redline	6500 rpm	6500 rpm
Weight to power	11.8 lb/hp	12.8 lb/hp
Transmission	6-speed automatic	5-speed automatic
Axle/final drive ratios	2.93:1 / 2.55:1	3.42:1 / 2.60:1
Suspension, front; rear	Struts, coil springs, anti-roll bar; multilink, coil springs, anti-roll bar	Control arms, coil springs, adj shocks, anti-roll bar; multilink, coil springs, adj
Steering Ratio	10.0:1-18.0:1	18.2:1
Turns lock-t0-lock	1.8 (at rest)	3.0
Brakes, f;r	13.7-in vented disc; 13.6-in vented disc, ABS	12.7-in vented disc; 12.6-in vented disc, ABS
Wheels	17 x 7.5, cast alloy	17 x 7.5; 17 x 8.0, cast alum
Tires, f;r	225/50R17 94V M+S; 225/50R17 94V M+S Continental ContiTouringContact	235/50R17 95V M+S; 255/45R17 98V M+S Michelin Pilot HX MXM4
Dimensions
Wheelbase	113.7 in	116.4 in
Track, f/r	61.3 / 62.3 in	61.8 / 62.3 in
Length x Width x Height	190.6 x 72.7 x 58.0 in	196.3 x 72.6 x 57.6 in
Turning circle	37.5 ft	37.7 ft
Curb weight	3850 lb	4100 lb
Weight distribution	51 / 49 %	55 / 45 %
Seating capacity	5	5
Headroom, f/r	37.7 / 37.9 in	38.7 / 37.9 in
Legroom, f/r	41.5 / 36.0 in	42.6 / 38.3 in
Shoulder room, f/r	57.3 / 57.2 in	58.6 / 57.4 in
Cargo Volume	14.0 cu ft	13.8 cu ft
Test Data Acceleration to mph
0-30	1.9 sec	2.2 sec
0-40	3.0	3.3
0-50	4.1	4.6
0-60	5.5	6.1
0-70	7.2	7.9
0-80	9.0	10.1
0-90	11.0	12.5
0-100	13.6	16.5
PASSING, 45-65 MPH	2.8 sec	3.0 sec
Quarter Mile	13.8 sec @ 102.8 mph	14.4 sec @ 96.9 mph
Braking, 60-0 mph	123 ft	123 ft
600-foot slalom	64.6 mph avg	63.2 mph avg
Lateral acceleration	0.80 g avg	0.80 g avg
MT Figure Eight	27.1 sec @ 0.64 g avg	27.6 sec @ 0.63 g avg
Top-gear revs @ 60 mph	1900 rpm	2050 rpm
Consumer Info
Base price	$56,495	$47,720
Price as tested	$61,420	$58,785
Stability/traction control	Yes/yes	Yes/yes
Airbags	Dual front, front side, f/r curtain	Dual front, front side f/r curtain
Basic warranty	4 yrs / 50,000 miles	4 yrs / 50,000 miles
Powertrain warranty	4 yrs / 50,000 miles	4 yrs / 50,000 miles
Roadside assist period	4 yrs / 50,000 miles	4 yrs / 50,000 miles
Fuel capacity	18.5 gal	17.5 gal
EPA city/hwy fuel econ	18 / 26 mpg	17 / 26 mpg
Recommended fuel	Unleaded premium	Unleaded premium