Four Wheel Logic

Yes, k trucks can be street legal, but only if your state will title, register, and inspect them for road use.

No, most Karma cars aren’t fully electric; the models on sale are plug-in hybrids (EREVs) that drive on battery power, then use gas to keep going.

Yes, K&N air filters can be good if you maintain them right; if you drive in heavy dust, a quality paper filter may suit you better.

Yes, K&N filters can be worth it if you’ll clean and oil them right and you drive enough miles to beat the higher upfront cost.

Yes, K&N filters can be good when cared for well, but a quality paper filter wins if you want low upkeep.

Yes, K&N oil filters are usually solid, but match your engine and oil plan, then install them right.

Yes, K&N filters can be worth it if you keep the car long-term and service the filter well; for many drivers, paper filters cost less and work great.

Yes, K&N air filters can be worth it if you keep the car long term and clean them right; power gains are small.

Yes, K&N air filters can be good if you clean and oil them right; fit and driving conditions decide the payoff.

Yes, jumpstart boosters are worth it if you want a safe, fast start without another car and you’ll use it at least once.