As nobody responded I thought I’d close this one for future reference.
The LR part number is VPLFY0070 but it’s not available in the U.K., it’s a US part.
Why they think we wouldn’t want a sun shade that fits well is beyond me. It’s expensive though and I looked on eBay to find I’d be paying over £100 in total.
So I went on amazon and found a pop out version made by amazon Basics, in their XL size that fits the massive screen on the L405. (All my previous ones are too small, even though they were fine on the D3 and L322)
About £15 on prime. THE INVENTOR OF THE TERM "FULL-FAT RANGE ROVER" :
L405 Vogue SE, Black Pack, Exec Seating
2009MY Discovery 3 TDV6 HSE Stornoway, Black Pack
*Gone: 5.0 Supercharged Autobiography, Defender TDCi XS CSW, Defender TD5 HT, Vogue SE TDV8, Vogue TD6, RRSport SC 4.2V8, Classic 3.9 Vogue Auto, Land Rover Series 3 SWB