LVSteve
Member
This is Part 1 of a series of posts I will make about our Christmas road trip to the northern edge of the DFW metroplex.
So what vehicle were we to take on this journey? For minimum cost, the BMW 328D we own is the obvious choice being the smallest, lightest, and proven to be capable of 40-45 mpg on the highway. However, the direct route to Texas is via I-40 with plenty of elevation for snow should the weather slant that way. A 2WD car with low-profile boots and minimal ground clearance is not the preferred appliance for those conditions. One other factor is the complete lack of a spare wheel. Another problem with the low-profile, runflat tires was the unknown state of the I-40. Last buddy who drove on it to Flagstaff said it was trashed, with cars stopped on the shoulder with wrecked tires.
Nope, the Bimmer was out.
So, which of the two AWD SUVs was best? My wife's is the smaller and lighter, has better ground clearance (at least by eye) and needs Premium gas for its 2.0 turbo 4-cyclinder. Mine is a Mercedes ML 350 Bluetec, one of the last V6 turbo-diesel powered MLs sold in the US. As diesel and premium are about the same in NV, AZ, NM and TX, we figured we may as well be comfortable and not have to worry about space. Oh yeah, and then there's the 440 lb ft of torque for accelerating uphill when you're already past 5000' of elevation. Gotta love that variable turbo for flattening out the terrrain.
One thing that may have been in favor of my wife's SUV is that it runs on 18" wheels with 60 profile tires rather than the 19" AMG rims I have. Calculations show that gives about another 1/2" of sidewall, which might have improved comfort on certain stretches of highway.
Another thing about taking the bigger SUV is the amount of large wildlife that can be encountered on I-40. The Elk carcass on the shoulder near Flagstaff we saw during the return trip was most instructive.
Another strike against the BMW unless we intended to do no night driving.
On the subject of space, we quickly realized how much nicer traveling by road is compared to flying. Lots of snacks to hand, no middle seat, your own soft blanket in the back if you want it for a quick snooze while the other one drives, none of these are happening in the air unless you own or hire a Learjet or similar. As my lottery tickets have repeatedly failed me...all aboard my chunky Mercedes.
So what vehicle were we to take on this journey? For minimum cost, the BMW 328D we own is the obvious choice being the smallest, lightest, and proven to be capable of 40-45 mpg on the highway. However, the direct route to Texas is via I-40 with plenty of elevation for snow should the weather slant that way. A 2WD car with low-profile boots and minimal ground clearance is not the preferred appliance for those conditions. One other factor is the complete lack of a spare wheel. Another problem with the low-profile, runflat tires was the unknown state of the I-40. Last buddy who drove on it to Flagstaff said it was trashed, with cars stopped on the shoulder with wrecked tires.

So, which of the two AWD SUVs was best? My wife's is the smaller and lighter, has better ground clearance (at least by eye) and needs Premium gas for its 2.0 turbo 4-cyclinder. Mine is a Mercedes ML 350 Bluetec, one of the last V6 turbo-diesel powered MLs sold in the US. As diesel and premium are about the same in NV, AZ, NM and TX, we figured we may as well be comfortable and not have to worry about space. Oh yeah, and then there's the 440 lb ft of torque for accelerating uphill when you're already past 5000' of elevation. Gotta love that variable turbo for flattening out the terrrain.

One thing that may have been in favor of my wife's SUV is that it runs on 18" wheels with 60 profile tires rather than the 19" AMG rims I have. Calculations show that gives about another 1/2" of sidewall, which might have improved comfort on certain stretches of highway.
Another thing about taking the bigger SUV is the amount of large wildlife that can be encountered on I-40. The Elk carcass on the shoulder near Flagstaff we saw during the return trip was most instructive.

On the subject of space, we quickly realized how much nicer traveling by road is compared to flying. Lots of snacks to hand, no middle seat, your own soft blanket in the back if you want it for a quick snooze while the other one drives, none of these are happening in the air unless you own or hire a Learjet or similar. As my lottery tickets have repeatedly failed me...all aboard my chunky Mercedes.
