Yup, agree completely, Nick. BTCC, or any number of other race types, including many of the single car types, like Fiesta racing, or whatever. And, of course, some of the bike racing is fantastic.
Those races that I get enjoyment from are those where, essentially, it's a bunch of blokes (or women) on broadly equivalent equipment, where it's about what the drivers/riders actually do on the day. It's about split-second racing decisions, it's about instinct and experience, it's about a driver outperforming, out-racing, another driver. It's not about who spends the most money, who's got the best technology or whose pic crew screws up. It's not even about who has the best computer fuel-usage model on their laptops or whose boffins can design the best fuel stop strategy. All that, as far as I'm concerned, is boring. It may be tremendously clever, and it may be the pinnacle of technology, but what I want to see is jockeying for position, for sheer driving skill, for split-second precision in driving/riding making the difference. I want to see who can beat who, not who's got the better machine, or who can follow who for long enough to nip past when the other makes a minor mistake, because that's about the only chance they have of getting past.
And if drivers don't dare make overtaking manoeuvres like this for fear of having the race taken away from them by a bunch of jumped up stewards second-guessing them, then it turns what had already been degraded into probably the dreariest form of motor racing currently available into a sport marginally less interesting that watching paint dry.