Autosmart products are great but each has their place
G101 you can't go wrong with.. but remember if you're using it as a TFR then it is very strong
Smart Wheels is an excellent product and is non-acidic
Finish - is a water based tyre and trim dressing with silicone for both protecting and rejuvenating vinyl, rubber and plastic. High sheen but can be diluted for interior use if a softer sheen is required. Finish is solvent free and non-flammable.
Highstyle - leaves a weather resistant finish for all tyres, vinyl and plastics, inside and out. Unbeatable gloss and lustre.
Pazzazz - an interior dressing for vinyl, plastics and rubber trim.
Trim Ultra - long lasting exterior dressing. The easy to apply liquid dressing restores colour, has a high gloss finish, is extremely weather resistant and last for many weeks. Trim Ultra dries very hard so mustn't be left on paintwork.
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Choosing between finish and Highstyle can be a difficult one. Highstyle I use for tyres as it leaves a really glossy finish. You can use it on trim and plastics and it will leave them very glossy. Best applied from a nozzle bottle with either a paintbrush or a cotton cloth.
Finish I have used on tyres... brings then back to a nice 'black' without too much gloss or bling. I find Finish best for Engine bays, wheel arches and interior plastic trim... the good thing about Finish is you can just spray it on and walk away... I find its best applied neat with a trigger spray.
For the black plastic trim on your old mans car you can clean with G101 on a microfibe... really get the dirt and polish off. Then apply your dressing of choice. If I want a plastic trim finish to last then I would use trim ultra... applied using an nozzle bottle and a sponge and then wiped down using an old microfibre. It needs about 4 hours in dry conditions to cure.