Since the invention of the wheel, people have wanted to improve and contribute their own reimagined ideas to things that already exist just in order to stretch out their creative legs, and add a dash of their own personality into the mix; cars are no exception. We've seen some like to add some cosmetic bedazzlement to enhance their ride's appearance by fitting some new wheels, or they sometimes even go as far as strapping on a complete body kit, others love to restore cars to their original condition, and others even do some unthinkable engine swaps. The other part half of the modifying community is obsessed with extracting every single ounce of power out of their engines; they call themselves tuners. Related: 10 Surprising Facts About Classic Car Ownership Sure, tailoring something to your acquired taste can be a wonderful way of expressing yourself, but for these following Chevys, Fords, and other American classic cars, we'd recommend not even thinking about modifying them.

10 Chevrolet Bel Air

The 1957 Chevrolet Bel-Air at an auction The Bel Air is one of the most gorgeous American classics ever; all the way from its handsome chromed front end, to its sharp winged tail lights. Not only did the exterior of the two-tone Chevy make everyone drool in envy, but bolstered underneath the hood was a small block V8 that pushed out 355 proper American horses that made the giant move in a rather surprising manner. Why anyone would want to modify such an artwork still baffles us to this day.

9 1970 Chevrolet Chevelle SS

Chevellle SS 454 - Front Quarter Big gas-guzzling V8s usually mean despicable gas mileage figures, but just since the Chevelle is such a gem, we'll overlook that slight imperfection, after all, at its heart, it's a burnout monster. 1970 Chevrolet Chevelle SS454 - 450 hp via mecum 2 The SS already had a punchy naturally aspirated Big-Block V8 with a displacement of 454 cubic inches or 7.4-liters which roared out an unfathomable 450 hp and 500 lb-ft of torque. The Chevelle SS has absolutely no hunger for more power, so we believe this Chevy should be kept stock.

8 Cadillac Eldorado

1976 Cadillac Eldorado Convertible If you've ever wanted to feel like the absolute king, one of your best choices would be to cruise down Hollywood Boulevard in a wide, low-slung Eldorado, Elvis Presley drove one after all. 1976 Cadillac Eldorado Convertible This Caddy embraced every single droplet of its ostentatiousness by having enormous winged tail lights, splashes of chrome everywhere to attract admirers, and if you were to coast down in a topless Eldorado, you'd be floating down the road in one of the most beautiful American convertibles ever made.

Related: These Are The 10 Sickest Classic Convertibles Money Can Buy

7 Ford Mustang

Red 1965 Ford Mustang Every single one of us knows about Mustangs from the '60s, they're striking pony cars with a harmonious V8 and an elegant personality that fits any driver. They turn necks wherever they go, and it's all due to its timeless design, rich history, and celebrity-like reputation, have a look at Kendall Jenner's candy apple red 1965 Mustang. The original Mustang is one of the best classic cars money can buy, and they're set to skyrocket in value, especially if they're in mint condition. Related: These Are Some Of The Coolest Ford Mustangs Of All Time

6 Duesenberg Model J

Duesenberg Model J
Via: Classic driver

Brilliance, that's the best word to describe the Model J's persona as a whole; the Duesenberg defied the limits of automotive possibility by incorporating a never-heard-of 265-hp engine that crowned it to be one of the fastest cars of its time.

2-Via AutoEvolution
Via AutoEvolution

On top of that, the Model J looked as elegant as can be with its humongous body, fabric drop-top, oversaturation of metallic accents, and overall road presence. Unfortunately, the Doozy's life was not long-lived, due to the terrible stock market crash of 1929 only 500 models were ever manufactured

5 Lincoln Continental

The fourth generation of the Continental has to be the most famous one, after all, it was used to transport the Royal Family, and also served as an American Presidential State Car used by one and only John F. Kennedy. The Lincoln had suicide doors, a leather soaked interior, and could be specced with a convertible roof to cruise down streets in fashion. 1977-Lincoln-Continental-Town-Car-1 We don't care how cool you think you can make one of these looks with hydraulic suspension, 22-inch rims, and upgrades to the V8 engine, the Continental is perfect just the way it is.

Related: 10 Cheap Classic Cars That'll Make You Feel Like A Million Bucks

4 Chevrolet Impala

1967 Chevrolet Impala Supernatural The Chevy Impala saloon screams hardcore American muscle that the whole family can enjoy; it had 4 doors, insanely comfortable bench seats, and a rowdy and robust V8 to accompany its intimidating design. Engine options were limitless with choices ranging from somewhat underwhelming 155 hp 6-cylinders all the way up to an animalistic 427 cubic-inch 7.0-liter V8 that pushed out up to 425 American horses in the SS variant. One of the most well-known Impalas to be showcased on TV is a black 1967 saloon with the nickname Baby, portrayed in the CW show, Supernatural.

3 Dodge Charger R/T

We know the urge to build a sub-10-second '70s Charger drags monster, just like Dominic Toretto, is quite tempting, but there is something special, something enigmatic if you will, about a classic Charger R/T. It's already more than powerful enough thanks to its 390 hp V8 with a displacement of 7-liters and drives brilliantly due to Dodge's engineering geniuses. 1969 Dodge Charger R/T quarter front Almost nothing comes close to being as breathtaking as a completely rejuvenated Charger R/T finished off in a brilliant black paint job.

2 Chevrolet Corvette C1

The front of a later C1 Corvette Arguably one of the utmost gorgeous American sports cars ever made, especially the topless 'Vette from the late 1950s in a dazzling red and white color scheme. The original C1 Corvette was a rear-wheel-drive front-mounted V8-powered sports car that made anything upwards of 240 hp, but for this list, we're looking at the redesigned C1. The rear of a later C1 Corvette The updated first-generation Corvette had some distinct features like quadruple headlights, a stretched-out front end, and a perfectly sculpted rear. We think the C1 Chevy looks its part the best without a roof and finished off from the factory in that red and white color scheme, furthermore it should be left untouched.

1 Ford Model T

1916 Ford Model-T Touring Four-Cylinder Classic Car The Model T might not be the fastest, most exciting to drive, or even best-looking car the world has ever seen, but at its core, it's a raw piece of history that needs to remain exactly as it originally was. Not only did Ford change the world forever with their Model T, but also made one of the world's best-selling cars - number two to be exact - with 15 million units being sold since 1908. Although this Ford had a top speed of just 40 mph and a 0-60 time that's non-existent, this relic needs to remain unscathed.