Can anyone tell me if a 1988 XJS 5.3L V12 would have had cruise control as standard?
Or was it an optional extra maybe?
Standard.
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Thanks a lot. Would you know if it is the type with the large bellows say 5” In diameter?
I haven’t got access to the car. Simply the engine which now has the 6.0 litre “ throttle wheel spider”
LOL Palmdude … good idea on how to get those “too short” replies posted nevertheless … I was always just adding “!!!” 
That I don’t know. As some point it changed to a different type with a ball chain connected to the turntable, but I dunno when it changed. I would guess it was later, though, and that an '88 would still have the large bellows.
Right. The change was circa 1991-1992
Cheers
DD
Ok, thanks chaps. It’s not really my problem but good to know.
My 88 built in 87 has a large bellows
Cruise control option was strictly related to region of dealership. Probably it was a standard for US market as it makes sense.
Imagine yourself using it in Norway or UK or even Europe, purely useless…