Should all 2010 cars have side vents with the three horizontal "strakes" on? I'm looking at some TDV8s of that era that have plain vertical slats. Is that right?

There are several options that are all correct. LR played around with the options and colour coding in the last few years from 09 to 12. Interesting to see that the 405 has now gone back to the vertical slats as per the earlier 322s. Tom

Current Drive
2011 4.4 TDV8 Autobiography - Santorini Black - Ivory Leather

Previous Drives
2004 Model Vogue Td6 (Touchscreen) - Java Black - Parchment Leather
1994 RR Classic 3.9 V8 Soft dash - Niagara Grey - Grey Leather
1972 Series III SWB Safari - Green (Hand Painted) - Black Plastic

I think that all 2010's, the 3rd facelift of the car, all have the ''power vents'' with the 3 horizontal strakes.

Non-Supercharged/Autobiography 10MYs still have the vents with three full-length vertical blades. 11MYs all came with the three horizontal strakes at the top and plastic chicken wire.

So what about late 2009 (2010 MY) TDV8s? Like this: http://www.sccleeds.co.uk/land-rover-range...le-3522093

Yes, it's not an Autobiography.