Updated: July 17, 2026
Short answer
Rent the Corvette Z06 for the biggest thrill per dollar: 670 horsepower, a mid-engine layout, and $449 a day at Grant Motor Group. Rent the Porsche 911 GT3 if you want a sharper, more precise driver's car with a 9,000 rpm flat-six and rear-axle steering, at $799 a day. Confirm both current rates when you book.
The Corvette Z06 is the better rent when you want the most power for the least money. It makes 670 horsepower, sits mid-engine, and goes out at $449 a day. The Porsche 911 GT3 is the better rent when you want feel and control over raw force. It gives you sharper steering, a race-bred chassis, and rear-axle steering, at $799 a day. Both engines are naturally aspirated, which means no turbos. Both rev past 8,500 rpm. The choice comes down to what you want out of the drive and what you want to spend.
The Z06 wins the spec sheet on power and price, and the GT3 wins on weight and feel. Here are the numbers that matter, pulled from each maker and from independent road tests.
| Spec | Corvette Z06 | Porsche 911 GT3 |
|---|---|---|
| Engine | 5.5L V8, naturally aspirated | 3.8L flat-six, naturally aspirated |
| Power | 670 hp at 8,400 rpm | 475 hp |
| Redline | 8,600 rpm | 9,000 rpm |
| 0-60 mph | 2.6 seconds | about 3.4 seconds |
| Top speed | 195 mph | 195 mph |
| Layout | Mid-engine | Rear-engine |
| Gearbox | 8-speed dual-clutch | 7-speed PDK |
| GMG daily rate | $449 | $799 |
The Z06's engine is called the LT6. It makes 670 hp at 8,400 rpm, and Motor Authority calls it the most powerful naturally aspirated production V8 ever built. That is about 122 hp for every liter of displacement, a figure most turbo engines struggle to match. The GT3's flat-six makes less power on paper, 475 hp, but it is a motorsport-derived engine built to rev to 9,000 rpm. So the Z06 hits harder in a straight line, and the GT3 is built to feel like a race car under you.
The Z06 gives you more power, a quicker launch, and a lower price than the GT3. It runs 0-60 mph in 2.6 seconds and the quarter mile in 10.6 seconds. Those are numbers that used to belong to cars costing three times as much.
The heart of it is that LT6 V8. It uses a flat-plane crankshaft, the same design Ferrari uses, which lets it spin to an 8,600 rpm redline and sing like an exotic. It is the first Corvette engine with dual overhead cams since the Lotus-designed LT5 in the 1990 ZR-1, so this is a real break from the old pushrod small-blocks. The engine is a road-legal version of the one in the C8.R race car, and every LT6 is hand-built by a single master builder at Chevrolet's plant in Bowling Green, Kentucky, whose signature ends up on the engine. It also makes 460 pound-feet of torque, with peak twist arriving at 6,300 rpm.
The layout helps too. The Z06 is mid-engine, meaning the motor sits behind the seats instead of up front. That puts more weight over the rear tires for grip off the line and balance through corners.
Then there is value. The Z06 starts at $106,395, while a GT3 stickers well north of that. At Grant Motor Group that gap shows up in the daily rate: $449 a day for the Z06 versus $799 for the GT3. If your goal is the loudest, fastest, most head-turning day for the smallest bill, the Z06 is the pick. These rates can change, so confirm the current price when you book.
The GT3 gives you sharper handling, a lighter body, and steering you feel through your hands. This is the car for a driver who cares more about how a car feels than how big the horsepower number is. It is the lighter car of the two, and that low weight is why it feels so alive in a corner.
Neither car has a clutch pedal. The Z06 uses an 8-speed dual-clutch automatic, and our GT3 uses Porsche's 7-speed PDK with paddles. The difference for a renter is feel: rear-axle steering, a lighter body, and a chassis that talks through the wheel.
The GT3's engine is a story of its own. The 3.8-liter flat-six revs to 9,000 rpm, higher than the Z06, and it gets there with race-car parts: titanium connecting rods, forged pistons, and a dry-sump oil system built to keep oil flowing under hard cornering.
The chassis is race-bred as well. Rear-axle steering that turns the back wheels has been standard on the GT3 since the 2014 car, and our GT3 has it, along with a front axle lift for driveways. The badge has deep roots too. The first 911 GT3 arrived in 1999 as the first road-legal production car to lap the Nürburgring in under eight minutes.
Rent the Z06 for a bucket-list blast and rent the GT3 for a driver's day. If you want the biggest shock of speed, the deepest V8 sound, and the best deal, the Z06 delivers it for $449 a day. If you want to feel every input through the wheel, chase a 9,000 rpm redline, and drive something with a straight line to Le Mans, the GT3 is worth the $799.
For Scottsdale specifically, think about where you will drive. A run up to Sedona on Highway 89A or out along the Bush Highway rewards the GT3's steering and balance on the twisty bits. A cruise down Scottsdale Road or a photo day at a resort plays to the Z06's looks and sound, at a friendly rate. Both cars require premium fuel, a valid license, your own full-coverage insurance, and a refundable security hold that varies by car (a credit card is the best way to carry it; confirm card options when you book). We confirm the exact hold and current daily rate when you book, since both can change.
Still torn? Tell us your plan and your budget and we will match you to the right car, or set up a two-day booking so you can drive both. To reserve your dates, call or text (623) 400-3031 or message @grantmotorgroup on Instagram.
Call or text (623) 400-3031 or send a DM to @grantmotorgroup on Instagram. We deliver anywhere in Scottsdale.
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