Too low to the ground. SUV is suppose to have additional clearance.

Look domestic. GM and Ford have reasonable offerings in that size range, decent off-road capablities, and have greatly improved in quality and reliability. If you think the Cherokee SRT-8 is too low, then consider one of the non-SRT versions of that vehicle.

There is nothing to like about the RX. It is essentially a Lincoln Town Car with a Toyota badge.

Try a Tourareg!

I had to get rid of my X5 because while it drove wonderful it was horribly unreliable in all aspects and lacked overall quality (peeling alloy, cracking wood) etc

SO I hear you on the X5 issues, it just doesn't hold up, or at least mine didn't, on a side note my 2003 325i with nearly 100k miles has NEVER had a major issue, so it's really a toss up!

My Treg has been stunning, no issues, amazing seats, great quality and 30k miles later no issues at all!

Just don't buy any Treg prior to 2006

On the RX, Our family had a 400H and It is a truly luxury car in all aspects, but it is very boring to drive, so pick your poison

get a x6

double that! Just got the 1st X6 5.0i in at the dealer the other day... black on black with dark bamboo wood trim (ebony stain). Gorgeous! And the twin turbo V8 is AMAZING! Other than that, I would try a newer toureg before any lexus/acura BS... And I'm not really a big volkswagon fan...

There's no better SUV. Get an X6 if you're bored with the X5. The one to look into is FX45 if you really want to step away from BMW. Have driven a new MDX, SH-AWD is good, but the shocks are under-damped for the spring rates.

They are fine SUV's, but I wouldn't classify the SRT-8, Ford or many GM vehicles as "luxury" SUV's like to OP is looking for.

The Infiniti FX50 is a good option.