I purchased a load of LEDs for smy car, all surface mounted, on ebay from hong kong. The prices below include delivery to UK the lot came to £26.50. Really cheap compared to everywhere else I looked. All work unbelievably bright. The seller >> LEDs
4 x dome 31mm 9leds for interior (as below) £10.50 for 4.
4 x 501 two for number plate and two for front doors (as below) £8 for 4.
4 x 233 for front dims (as below) including a spare set. £8 for 4.