Most collectible current Cadillac?

Among the current production Cadillacs which are the most collectible?    I think there are very obvious choices, like the XLR-V and STS-V.    The XLR and XLR-V because of their very low production numbers and hardtop convertible are naturals for collectors.  The STS-V is my personal pick for most underappreciated vehicle Cadillac makes today.  With a supercharged, 4.4L Northstar making 469hp, it is a jewel of a vehicle.  Think professional athelete in a finely tailored Italian suit. 

The new 556hp CTS-V will likewise be a very collectible car when we look back a decade or two down the road.  Power, handling, looks, luxury, it has it all.  But I think the STS-V or the XLR-V would be my picks for most overlooked and most likely to be treasured a decade from now.

 To me that is one of the interesting facets of collector cars — sometimes it is just finally having the ability to own a car you lusted after as a teen or young adult.  But other times I think it is the ability to appreciate a car that does a really excellent job of the task it was designed for.  And to me, the STS-V meets that criteria best.  It is an executive sedan with huge power, exquisite manners, and no compromises.

Cadillac BRX becomes SRX and SRX becomes Escalade sort of

Previously Cadillac had announced that the Epilon/Theta architecture vehicle we had been expecting to bow as the smaller crossover BRX will now be the next generation SRX.

Today Motortrend broke the news that the Escalade will move to the Lambda platform.  Now for those not keeping score, the lambda platform is the successful basis for the:

The current SRX is on a stretched Sigma platform, as the previous CTS and current STS are.  The new CTS is on Sigma II.  I was confused as to the main differences between the Sigma SRX and the Lambda Quadruplets, but the Lambda’s are FWD/AWD while the SRX is RWD/AWD.

So, while the BRX became the SRX, the Escalade becomes something like the SRX, only one would assume AWD.  The Escalade should also be the only V8 available on the Lambda platform, and benefit from the current LS3 or LSA engines.