Seven seat crossover? Cadillac or Mercedes?

We are looking for a crossover/soft-roader. We also would like 6 or 7 seats for times when we have my in-laws with us (for short drives mostly).Our driving patterns tend to suit petrol better than diesel, and automatic transmission is a must have.
We have been considering a Mercedes R-class, but are concerned about general reliability and service costs. We did come across a Cadillac SRX, that looks to fit the bill well. However, we know little about them, and concerns remain the same as mercedes (service costs and reliability).
What are your thoughts on these two - and/or should we consider something completely different?

Asked on 22 June 2015 by rlbriverside

Answered by Honest John
Warranty Direct's Reliability Index consistently finds the R-Class to be one of the most expensive vehicles to run in terms of repairs. Hardly any Cadillac SRXs ever got sold in the UK so maintenance and parts won't be much fun. If Land Rover fitted the Discovery Sport 7-seater with Ford's 240PS Ecoboost engine or the 3.0 V6 and an 8 or 9 speed auto, that might suit, but will be juicy.
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