tough choice.....
probably , with the rose tinted glasses of time, as a drive , my manual Sennie A , with tweaked suspension and breathed on engine, very very fast, and nimble... but maybe as an overall package, the manual Sennie B that replaced it.... not so much the auto one that came after that... ALL my Sennies clocked past 100K , both the manual's notching over 200K
there's been a fair few others worthy of remembrance,, since i passed my test in 83, some of which were awesome beasties..... some were just "nice"
carlton 2.2 CDX was nice, came just before the Sennies... metallic burgundy, C plate , had it for nearly 18 months before my first (D plate) sennie.
before that, in amongst the stupid stuff, a VERY silly 3.1 group A engined Capri, all in matte black.... .... monstrously fast, totally undriveable in traffic in town, a clutch weight that require the left foot of the hulk,
totally totally mental. took a flying lesson one night in to a field off a hump back bridge ..... end over end roll.... ouch.....
but Capri's went off my list of memorable fondness after the wife bought me a 2.8 injection as a "fun" car for my 30th birthday.... disappointment central.... largely because my "normal" car, a 3.0 24V Senator , was faster and handled better, and used less fuel doing it, as well as being generally more civilised and comfortable.... the Capri just wasn't any fun any more... i'd been spoilt by the Sennies.....
and actually, despite it's awful reputation, and nightmare parts availability, the 3.0 V6 Sintra, if one HAS to have a 7 seater, then it's definitely the "driver's" choice.... for a bus of that size, they're quick, practical, and more economic than you might think..... and comfortable , the driver position and commanding road view is excellent... and they're relatively stable , in cornering, like a decent Miggy Elite, (not as tight as an Mv6, but still not too shabby) unlike the twitchy bouncy piece of shit Zafira. a few issues though for those fond of "pressing on" like the 15 inch wheels limiting the size of the brake disks , and therefore being too small to stop it from high speed in a hurry without overheating and warping.... and waiting 12+ weeks for most parts other than the engine bits, to come from the US , as GM never really kept parts for them in the UK, even the germans had very little.... and the headlights did SO like to dismantle themselves ....
but other than that, I knocked up 80k in mine, very happily....