General auto horsepower question

[axxeman01]

Greetings,

My car is getting a bit long in the tooth, and while I'm at least a year out from making a purchase, I want to get an idea of what I need to look for. I mean the raw numbers, I want something that is at a minimum as quick and fast as my current car, but a little more modern.

I wasn't sure what performance specs to look at other than horsepower and curb weight, is there something I should specifically focus on? I enjoy more the speed off the line than a blazing top end (I never drive above 85 for any length of time). Again, not looking for specific models per say, rather the specs I should look at (as far as models, I'm looking at the base Porsche cayenne, but based on the HP vs weight, I'm not sure it's much better).

Here's my current car:

1994 BMW 530i SEDAN

Engine Type V-8, dohc - 32 valve, smpfi* M60B30
Engine Size 3.0 liter/183 cid
Horsepower 215 @ 5800
Torque (ft/lbs) 214 @ 4500
Wheelbase/Length 109"/186"
Curb Weight 3650
Pounds per Horsepower 17
Drive Train front engine/rear drive

* smpfi - sequential multiport fuel injection

PERFORMANCE

EPA Economy - miles per gallon,
city/highway/observed 16/23/19.6
0 to 60 mp 7.5 sec
1/4 mi (E.T.) 15.2 sec
Coefficient of Drag (Cd) .32

Thank you - Chris