Buick Regal Buick Regal 2018 Mazda RX-8 Mazda RX-8 2006

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Buick Regal vs. Mazda RX-8 Price Comparison (MSRP)

The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.

Models in short supply often sell at or even above these prices.

Buick Regal vs. Mazda RX-8 Invoice Comparison

Lowest Total Price: $36,660

Mazda RX-8 Base (manual)   
Difference: $6,435

Lowest Total Invoice: $33,239

Mazda RX-8 Base (manual)   
Difference: $8,012

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182006
ModelRegalRX-8
TrimGSBase (manual)
Body4dr Hatch4dr Coupe
Base Price $39,065 $26,435
Base Invoice $37,502 $24,458
Sights and Sounds Package 945  
Appearance Package 485  
Metallic paint (extra cost) 395  
All-weather floor mats 140 60
Cargo organizer 140 70
Sunroof 1,000  
Shinka Package   6,165
Navigation system   2,000
Body kit   970
Rear spoiler   360
Cargo net   40
Sights and Sounds Package 860  
Appearance Package 441  
Metallic paint (extra cost) 359  
All-weather floor mats 127 45
Cargo organizer 127 56
Sunroof 910  
Shinka Package   5,304
Navigation system   1,721
Body kit   775
Rear spoiler   288
Cargo net   32
Options (change) 3,105 9,665
Options (change) 2,824 8,221
Destination 925 560
Total Price $43,095 $36,660
Total Invoice $41,251 $33,239

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

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Request free, no-obligation Buick Regal dealer quotes or Mazda RX-8 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Buick Regal vs. Mazda RX-8

Lowest Adjusted Price and Invoice: Buick Regal GS
TrueDelta Adjusted Price Difference: $3,430
TrueDelta Adjusted Invoice Difference: $1,431
Model Year20182006
ModelRegalRX-8
TrimGSBase (manual)
Body4dr Hatch4dr Coupe
Engine310hp V6238hp R2
TransmissionT9M6
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)19/27 MPG18/24 MPG
Audio (watts, speakers)?, 8300, 9
Tire (rear if not all the same)245/40-19225/45-18
Total Price$43,095$36,660
Adjustments for Features-9,8650
Feature-Adjusted Total Price$33,230$36,660
Total Invoice$41,251$33,239
Adjustments for Features-9,4430
Feature-Adjusted Total Invoice$31,808$33,239

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Features Comparison: Buick Regal vs. Mazda RX-8

Model Year20182006
ModelRegalRX-8
TrimGSBase (manual)
Body4dr Hatch4dr Coupe
Transmission and Drivetrain 
9-speed manually-shiftable automatic$1400 
6-speed manual $150
AWD$1700 
RWD $0
Accessories 
Active noise reduction$0 
Heated steering wheel$100 
Power rear side windows$200 
Remote app$25 
Remote start$150 
Tilt steering wheel, manual $150
Tilt/telescoping steering wheel, manual$250 
Brakes, Airbags, and Other Safety 
Blind spot warning system$200 
Brake assist$50 
Cross-traffic warning, rear$100 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Obstacle detection, front$150 
Obstacle detection, rear$250 
Rear side airbags$300 
Rearview camera$200 
Rollover sensor$50 
Safety key$5 
Vehicle health reports$0 
Cargo Management 
Cargo cover$75 
Overhead sunglass holder $25
Rear seat pass-through $100
Second-row high console $250
Climate Control 
Automatic climate control, front$200 
Dual-zone climate control$125 
Rear air vents$100 
Water-repellent front-door glass $15
Drivetrain 
Active rear differential$500 
Limited-slip rear differential $300
Exterior 
Laminated front side windows$200 
Painted brake calipers (optional)$0 
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
App support$0 
Apple CarPlay support$100 
Aux input$50 
Bluetooth audio streaming$25 
Bluetooth cell phone link$100 
CD changer, in-dash $325
HD radio$50 
SMS text-to-speech reader$25 
Telematics service, such as OnStar, with navigation$225 
Voice control for external devices$0 
Voice control for nav and audio$100 
Wi-Fi hotspot$50 
Wireless charging station$75 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75 
Automatic headlights$125 
Compass$0 
Cornering lights$50 
Fog lights $125
Large color reconfigurable instrument cluster display$250 
LED headlights$1000 
Performance meter$150 
Trip computer$150 
Turn signals on or near mirrors$25 
Xenon HID headlights $500
Seats and Interior Trim 
Cooled or ventilated front seats$300 
Folding second row seats$300 
Manual thigh support length adjuster, driver seat$50 
Manual thigh support length adjuster, passenger seat$50 
Massage, driver seat$100 
Massage, passenger seat$100 
Memory system, driver seat$200 
Power 4-way lumbar adjuster, driver seat$150 
Power 4-way lumbar adjuster, passenger seat$150 
Power fore-aft adjuster, passenger seat$100 
Power height adjuster, passenger seat$100 
Power lumbar adjuster, driver seat $100
Power recliner, passenger seat$100 
Power seatback bolsters, driver seat$100 
Power seatback bolsters, passenger seat$100 
Power tilt adjuster, passenger seat$100 
Synthetic suede inserts in leather seating surfaces $0
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Alloy wheels$350 
Electronic systems calibration selector$200 
Polished alloy wheels $350
Sport suspension (upgrade) $0
Total Value of Features$12,255$2,390
Value of Feature Adjustments$9,865$0
Value of Feature Adjustments-9,4430

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Specifications Comparison: Buick Regal vs. Mazda RX-8

Model Year20182006
ModelRegalRX-8
Body4dr Hatch4dr Coupe
Wheelbase111.4 in106.4 in
Length192.9 in174.3 in
Width73.3 in69.7 in
Height57.3 in52.8 in
Curb Weight4,270 lb.3,045 lb.
Fuel Capacity16.3 gal.15.9 gal.
Row 1 Headroom38.8 in38.2 in
Row 1 Shoulder Room56.9 in54.8 in
Row 1 Hip Room55.2 in53.3 in
Row 1 Legroom42.1 in42.7 in
Row 2 Headroom37.4 in36.8 in
Row 2 Shoulder Room55.4 in54.9 in
Row 2 Hip Room54.1 in48.1 in
Row 2 Legroom36.9 in32.2 in
Cargo Volume,
Minimum
31.5 ft37.6 ft3
Cargo Volume,
Maximum
60.7 ft37.6 ft3

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Option Package Details
Buick Regal GS

Sights and Sounds Package
FeatureValueRequested?
Navigation system600Yes
Bose, 8 speakers (with subwoofer)350No
Voice control for nav and audio75No
HD radio50No
Speed limit information0No
Total Requested60056%
Total Not Requested47544%
Appearance Package
FeatureValueRequested?
Cornering lights50No
LED headlights1000No
Wireless charging station75No
Total Requested00%
Total Not Requested1125100%

Option Package Details
Mazda RX-8 Base (manual)

Shinka Package
FeatureValueRequested?
Leather seating surfaces900Yes
CD changer, in-dash200No
Satellite radio200Yes
Synthetic suede inserts in leather seating surfaces0No
Polished alloy wheels0No
Paint, special0No
Water-repellent front-door glass15No
Comfort suspension (upgrade)0No
Heated mirrors25Yes
Heated front seats200Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power lumbar adjuster, driver seat100Yes
Proximity key250Yes
Stability control400Yes
Fog lights125No
Xenon HID headlights500Yes
Traction control100Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Sunroof900Yes
Bose, 300W, 9 speakers350No
225/45ZR18 tires400No
Total Requested417579%
Total Not Requested109021%

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