A comprehensive comparison of key specifications between the 2017 Bmw 340I Xdrive Automatic and the 89 Porsche 928 Gtgts. To facilitate a clear understanding, we've organized the essential data into a concise table for your convenience.

To sum it up, we've put together a convenient table below, summarizing the key specifications of 2017 Bmw 340I Xdrive Automatic and 89 Porsche 928 Gtgts. Whether you're drawn to 2017 Bmw 340I Xdrive Automatic's practicality or 89 Porsche 928 Gtgts's beauty, this comparison will help you make an informed decision:

Cars
	2017 BMW 340i xDrive Automatic	1989 Porsche 928 GT/GTS
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General
Build Start	2017	1989
ModelVariant	F30	928
Chassis Code	F30
Body Details
Body type	4/5 seater sedan/saloon
Brakes
bmep (brake mean effective pressure)	1873.6 kPa (271.7 psi)kPa
Brakes F/R	VeDi/VeDi-S-ABS
Chassis & Geomtry
Length:Wheelbase Ratio	1.65
Weight distribution	47.3 % front
Dimensions
Fuel Tank Capacity	59.9litres
Ground clearance	145mm
Height	1435mm	1282mm
Kerb weight	1733kg
Length	4643mm	4447mm
Track/tread (front)	1537mm
Track/tread (rear)	1577mm
Wheelbase	2809mm	2500mm
Width	1811mm	1836mm
Engine details
Aspiration	Turbo
Bore × Stroke	82 × 94.6mm
Bore/stroke ratio	0.87
Capacity	3 litre (2998 cc)
Catalytic converter	Y
Compression Ratio	11:1
Cylinders	Straight 6
Engine code	B58B30M0
Engine coolant	Water
Engine layout	longitudinal
Engine manufacturer	BMW
Engine position	front
Engine Type	turbocharged petrol
Final drive ratio	2.81
Gearbox	8
Specific output	106.7bhp/litre
Specific torque	149.1Nm/litre
Sump	wet sumped
Top gear ratio	0.64
Fuel Consump.
Fuel consumption	21/32/25 US MPG EPA city/highway/combined
Fuel system	direct petrol injection
km/litre	8.9/13.6/10.6 km/l city/highway/combined
litres/100km	11.2/7.4/9.4 l/100km city/highway/combined
UK MPG	25.2/38.4/30.0 UK MPG city/highway/combined
US MPG	21.0/32.0/25.0 US MPG city/highway/combined
Performance
Acceleration 0-60mph	4.6s	5.6s
Drive wheels	all wheel drive
maximum power output	324 PS (320 bhp) (239 kW)at 5500 rpm
Maximum speed	209km/h	274km/h
Maximum Torque	447 Nm (330 ft·lb) (45.6 kgm)at 1380-5000 rpmlb/ft	317lb/ft
Power-to-weight ratio	187.22 PS/tonne (1000 kg), 137.69 kW/tonne (1000 kg), 184.65 bhp/tonne (1000 kg), 0.08 bhp/lb
Weight-to-power ratio	7.26 kg/kW, 12.13 lb/bhpkg/kW
Prices
Saftey
Wheels & Tyres
Tyres front	225/45 R 18 91Y
Tyres rear	255/40 R 18 95Y
Wheel size front	18x8½J
Wheel size rear	18x8½J
Aerodynamics
CdA	0.66
Drag coefficient	0.3
Frontal area	2.20 m²
Other
Number of doors	4
RAC rating	25.0
Unitary capacity	499.67cc
Valve gear	double overhead camshaft (DOHC), 4 valves per cylinder, 24 valves in total

In conclusion, the 2017 Bmw 340I Xdrive Automatic and 89 Porsche 928 Gtgts are two distinct cars and your choice ultimately boils down to your individual preferences and priorities. We hope this analysis aids you in your automotive journey, helping you find the perfect fit for your needs and desires.